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What Is Cephalic Position?

The ideal fetal position for labor and delivery

  • Why It's Best

Risks of Other Positions

  • Determining Position
  • Turning a Fetus

The cephalic position is when a fetus is head down when it is ready to enter the birth canal. This is one of a few variations of how a fetus can rest in the womb and is considered the ideal one for labor and delivery.

About 96% of babies are born in the cephalic position. Most settle into it between the 32nd and 36th weeks of pregnancy . Your healthcare provider will monitor the fetus's position during the last weeks of gestation to ensure this has happened by week 36.

If the fetus is not in the cephalic position at that point, the provider may try to turn it. If this doesn't work, some—but not all—practitioners will attempt to deliver vaginally, while others will recommend a Cesarean (C-section).

Getty Images

Why Is the Cephalic Position Best?

During labor, contractions dilate the cervix so the fetus has adequate room to come through the birth canal. The cephalic position is the easiest and safest way for the baby to pass through the birth canal.

If the fetus is in a noncephalic position, delivery becomes more challenging. Different fetal positions have a range of difficulties and varying risks.

A small percentage of babies present in noncephalic positions. This can pose risks both to the fetus and the mother, and make labor and delivery more challenging. It can also influence the way in which someone can deliver.

A fetus may actually find itself in any of these positions throughout pregnancy, as the move about the uterus. But as they grow, there will be less room to tumble around and they will settle into a final position.

It is at this point that noncephalic positions can pose significant risks.

Cephalic Posterior

A fetus may also present in an occiput or cephalic posterior position. This means they are positioned head down, but they are facing the abdomen instead of the back.

This position is also nicknamed "sunny-side up."

Presenting this way increases the chance of a painful and prolonged delivery.

There are three different types of breech fetal positioning:

  • Frank breech: The legs are up with the feet near the head.
  • Footling breech: One or both legs is lowered over the cervix.
  • Complete breech: The fetus is bottom-first with knees bent.

A vaginal delivery is most times a safe way to deliver. But with breech positions, a vaginal delivery can be complicated.

When a baby is born in the breech position, the largest part—its head—is delivered last. This can result in them getting stuck in the birth canal (entrapped). This can cause injury or death.

The umbilical cord may also be damaged or slide down into the mouth of the womb, which can reduce or cut off the baby's oxygen supply.

Some providers are still comfortable performing a vaginal birth as long as the fetus is doing well. But breech is always a riskier delivery position compared with the cephalic position, and most cases require a C-section.

Likelihood of a Breech Baby

You are more likely to have a breech baby if you:

  • Go into early labor before you're full term
  • Have an abnormally shaped uterus, fibroids , or too much amniotic fluid
  • Are pregnant with multiples
  • Have placenta previa (when the placenta covers the cervix)

Transverse Lie

In transverse lie position, the fetus is presenting sideways across the uterus rather than vertically. They may be:

  • Down, with the back facing the birth canal
  • With one shoulder pointing toward the birth canal
  • Up, with the hands and feet facing the birth canal

If a transverse lie is not corrected before labor, a C-section will be required. This is typically the case.

Determining Fetal Position

Your healthcare provider can determine if your baby is in cephalic presentation by performing a physical exam and ultrasound.

In the final weeks of pregnancy, your healthcare provider will feel your lower abdomen with their hands to assess the positioning of the baby. This includes where the head, back, and buttocks lie

If your healthcare provider senses that the fetus is in a breech position, they can use ultrasound to confirm their suspicion.

Turning a Fetus So They Are in Cephalic Position

External cephalic version (ECV) is a common, noninvasive procedure to turn a breech baby into cephalic position while it's still in the uterus.

This is only considered if a healthcare provider monitors presentation progress in the last trimester and notices that a fetus is maintaining a noncephalic position as your delivery date approaches.

External Cephalic Version (ECV)

ECV involves the healthcare provider applying pressure to your stomach to turn the fetus from the outside. They will attempt to rotate the head forward or backward and lift the buttocks in an upward position. Sometimes, they use ultrasound to help guide the process.

The best time to perform ECV is about 37 weeks of pregnancy. Afterward, the fetal heart rate will be monitored to make sure it’s within normal levels. You should be able to go home after having ECV done.

ECV has a 50% to 60% success rate. However, even if it does work, there is still a chance the fetus will return to the breech position before birth.

Natural Methods For Turning a Fetus

There are also natural methods that can help turn a fetus into cephalic position. There is no medical research that confirms their efficacy, however.

  • Changing your position: Sometimes a fetus will move when you get into certain positions. Two specific movements that your provider may recommend include: Getting on your hands and knees and gently rocking back and forth. Another you could try is pushing your hips up in the air while laying on your back with your knees bent and feet flat on the floor (bridge pose).
  • Playing stimulating sounds: Fetuses gravitate to sound. You may be successful at luring a fetus out of breech position by playing music or a recording of your voice near your lower abdomen.
  • Chiropractic care: A chiropractor can try the Webster technique. This is a specific chiropractic analysis and adjustment which enables chiropractors to establish balance in the pregnant person's pelvis and reduce undue stress to the uterus and supporting ligaments.
  • Acupuncture: This is a considerably safe way someone can try to turn a fetus. Some practitioners incorporate moxibustion—the burning of dried mugwort on certain areas of the body—because they believe it will enhance the chances of success.

A Word From Verywell

While most babies are born in cephalic position at delivery, this is not always the case. And while some fetuses can be turned, others may be more stubborn.

This may affect your labor and delivery wishes. Try to remember that having a healthy baby, and staying well yourself, are your ultimate priorities. That may mean diverting from your best laid plans.

Speaking to your healthcare provider about turning options and the safest route of delivery may help you adjust to this twist and feel better about how you will move ahead.

Glezerman M. Planned vaginal breech delivery: current status and the need to reconsider . Expert Rev Obstet Gynecol. 2012;7(2):159-166. doi:10.1586/eog.12.2

Cleveland Clinic. Fetal positions for birth .

MedlinePlus. Breech birth .

UT Southwestern Medical Center. Can you turn a breech baby around?

The American College of Obstetricians and Gynecologists. If your baby is breech .

Roecker CB. Breech repositioning unresponsive to Webster technique: coexistence of oligohydramnios .  Journal of Chiropractic Medicine . 2013;12(2):74-78. doi:10.1016/j.jcm.2013.06.003

By Cherie Berkley, MS Berkley is a journalist with a certification in global health from Johns Hopkins University and a master's degree in journalism.

Appointments at Mayo Clinic

  • Pregnancy week by week
  • Fetal presentation before birth

The way a baby is positioned in the uterus just before birth can have a big effect on labor and delivery. This positioning is called fetal presentation.

Babies twist, stretch and tumble quite a bit during pregnancy. Before labor starts, however, they usually come to rest in a way that allows them to be delivered through the birth canal headfirst. This position is called cephalic presentation. But there are other ways a baby may settle just before labor begins.

Following are some of the possible ways a baby may be positioned at the end of pregnancy.

Head down, face down

When a baby is head down, face down, the medical term for it is the cephalic occiput anterior position. This the most common position for a baby to be born in. With the face down and turned slightly to the side, the smallest part of the baby's head leads the way through the birth canal. It is the easiest way for a baby to be born.

Illustration of the head-down, face-down position

Head down, face up

When a baby is head down, face up, the medical term for it is the cephalic occiput posterior position. In this position, it might be harder for a baby's head to go under the pubic bone during delivery. That can make labor take longer.

Most babies who begin labor in this position eventually turn to be face down. If that doesn't happen, and the second stage of labor is taking a long time, a member of the health care team may reach through the vagina to help the baby turn. This is called manual rotation.

In some cases, a baby can be born in the head-down, face-up position. Use of forceps or a vacuum device to help with delivery is more common when a baby is in this position than in the head-down, face-down position. In some cases, a C-section delivery may be needed.

Illustration of the head-down, face-up position

Frank breech

When a baby's feet or buttocks are in place to come out first during birth, it's called a breech presentation. This happens in about 3% to 4% of babies close to the time of birth. The baby shown below is in a frank breech presentation. That's when the knees aren't bent, and the feet are close to the baby's head. This is the most common type of breech presentation.

If you are more than 36 weeks into your pregnancy and your baby is in a frank breech presentation, your health care professional may try to move the baby into a head-down position. This is done using a procedure called external cephalic version. It involves one or two members of the health care team putting pressure on your belly with their hands to get the baby to roll into a head-down position.

If the procedure isn't successful, or if the baby moves back into a breech position, talk with a member of your health care team about the choices you have for delivery. Most babies in a frank breech position are born by planned C-section.

Illustration of the frank breech position

Complete and incomplete breech

A complete breech presentation, as shown below, is when the baby has both knees bent and both legs pulled close to the body. In an incomplete breech, one or both of the legs are not pulled close to the body, and one or both of the feet or knees are below the baby's buttocks. If a baby is in either of these positions, you might feel kicking in the lower part of your belly.

If you are more than 36 weeks into your pregnancy and your baby is in a complete or incomplete breech presentation, your health care professional may try to move the baby into a head-down position. This is done using a procedure called external cephalic version. It involves one or two members of the health care team putting pressure on your belly with their hands to get the baby to roll into a head-down position.

If the procedure isn't successful, or if the baby moves back into a breech position, talk with a member of your health care team about the choices you have for delivery. Many babies in a complete or incomplete breech position are born by planned C-section.

Illustration of a complete breech presentation

When a baby is sideways — lying horizontal across the uterus, rather than vertical — it's called a transverse lie. In this position, the baby's back might be:

  • Down, with the back facing the birth canal.
  • Sideways, with one shoulder pointing toward the birth canal.
  • Up, with the hands and feet facing the birth canal.

Although many babies are sideways early in pregnancy, few stay this way when labor begins.

If your baby is in a transverse lie during week 37 of your pregnancy, your health care professional may try to move the baby into a head-down position. This is done using a procedure called external cephalic version. External cephalic version involves one or two members of your health care team putting pressure on your belly with their hands to get the baby to roll into a head-down position.

If the procedure isn't successful, or if the baby moves back into a transverse lie, talk with a member of your health care team about the choices you have for delivery. Many babies who are in a transverse lie are born by C-section.

Illustration of baby lying sideways

If you're pregnant with twins and only the twin that's lower in the uterus is head down, as shown below, your health care provider may first deliver that baby vaginally.

Then, in some cases, your health care team may suggest delivering the second twin in the breech position. Or they may try to move the second twin into a head-down position. This is done using a procedure called external cephalic version. External cephalic version involves one or two members of the health care team putting pressure on your belly with their hands to get the baby to roll into a head-down position.

Your health care team may suggest delivery by C-section for the second twin if:

  • An attempt to deliver the baby in the breech position is not successful.
  • You do not want to try to have the baby delivered vaginally in the breech position.
  • An attempt to move the baby into a head-down position is not successful.
  • You do not want to try to move the baby to a head-down position.

In some cases, your health care team may advise that you have both twins delivered by C-section. That might happen if the lower twin is not head down, the second twin has low or high birth weight as compared to the first twin, or if preterm labor starts.

Illustration of twins before birth

  • Landon MB, et al., eds. Normal labor and delivery. In: Gabbe's Obstetrics: Normal and Problem Pregnancies. 8th ed. Elsevier; 2021. https://www.clinicalkey.com. Accessed May 19, 2023.
  • Holcroft Argani C, et al. Occiput posterior position. https://www.updtodate.com/contents/search. Accessed May 19, 2023.
  • Frequently asked questions: If your baby is breech. American College of Obstetricians and Gynecologists https://www.acog.org/womens-health/faqs/if-your-baby-is-breech. Accessed May 22, 2023.
  • Hofmeyr GJ. Overview of breech presentation. https://www.updtodate.com/contents/search. Accessed May 22, 2023.
  • Strauss RA, et al. Transverse fetal lie. https://www.updtodate.com/contents/search. Accessed May 22, 2023.
  • Chasen ST, et al. Twin pregnancy: Labor and delivery. https://www.updtodate.com/contents/search. Accessed May 22, 2023.
  • Cohen R, et al. Is vaginal delivery of a breech second twin safe? A comparison between delivery of vertex and non-vertex second twins. The Journal of Maternal-Fetal & Neonatal Medicine. 2021; doi:10.1080/14767058.2021.2005569.
  • Marnach ML (expert opinion). Mayo Clinic. May 31, 2023.

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Presentation and position of baby through pregnancy and at birth

9-minute read

If you are concerned about your baby’s movements, contact your doctor or midwife for advice immediately.

  • If you baby is in a breech presentation, your doctor may recommend trying a technique called an external cephalic version to try and move your baby while they are still in the uterus for an easier birth.

What does presentation and position mean?

Presentation refers to the part of your baby’s body that is facing downwards in the direction of the birth canal.

Position refers to where your baby’s occiput (the bottom part of the back of their head) is in relation to your body.

If your baby is in a breech presentation , then position refers to where your baby’s sacrum (lower back) is in relation to your body.

People — including medical professionals — sometimes use these terms incorrectly. Sometimes when speaking about babies in breech presentation, the word ‘position’ will be used to refer to their presentation. For example, you may read information or hear people say ‘breech position’ instead of ‘breech presentation’.

What are the different types of presentation my baby could be in during pregnancy and birth?

Most babies present headfirst, also known as cephalic presentation. Most babies that are headfirst will be vertex presentation. This means that the crown of their head sits at the opening of your birth canal.

In rare cases, your baby can be headfirst but in face or brow presentation, which may not be suitable for vaginal birth.

Vertex, brow and face presentations

If your baby is in a breech presentation, their feet or bottom will be closest to your birth canal. The 3 most common types of breech presentation are:

  • frank or extended breech — where your baby’s legs are straight up in front of their body, with their feet up near their face
  • complete or flexed breech — where your baby is in a sitting position with their legs crossed in front of their body and their feet near their bottom
  • footling breech — where one or both of your baby’s feet are hanging below their bottom, so the foot or feet are coming first

Read more on breech presentation .

What are the different positions my baby could be in during pregnancy and birth?

If your baby is headfirst, the 3 main types of presentation are:

  • anterior – when the back of your baby’s head is at the front of your belly
  • lateral – when the back of your baby’s head is facing your side
  • posterior – when the back of your baby’s head is towards your back

Anterior, lateral and posterior fetal presentations

How will I know what presentation and position my baby is in?

Your doctor or midwife can usually work out your baby’s presentation by feeling your abdomen. They may also double check it with a portable ultrasound. Your baby’s presentation is usually checked around 36 weeks .

Your doctor or midwife will also confirm your baby’s head position in labour by examining your belly and using an ultrasound , and they may also do a vaginal examination . During the vaginal examination they are feeling for certain ridges on your baby’s head called sutures and fontanelles that help them work out which way your baby is positioned.

What is the ideal presentation and position for baby to be in for a vaginal birth?

For a vaginal birth, your baby will ideally be headfirst with the back of their head at the front of your belly, also known as being in the anterior position. This position is best for labour and birth since it means that the smallest part of your baby’s head goes down the birth canal first.

Vertex presentation, showing the narrow part of the baby’s head.

When does a baby usually get in the ideal presentation and position for birth?

Your baby will usually be in a headfirst position by 37 weeks of pregnancy. Around 3 in every 100 babies will be in breech presentation after 37 weeks.

Your baby’s position can change with your contractions during labour as they move down the birth canal, so their exact position can change during labour.

What are my options if baby isn't in the ideal presentation or position for a vaginal birth?

If your baby is in a breech presentation, your doctor may recommend a technique called an external cephalic version (ECV) to try and move your baby while they are still in the uterus . An ECV involves your doctor using their hands to apply pressure on your belly and help turn your baby to a headfirst position. It has a 1 in 2 chance of success and is a safe option in most pregnancies.

There is no evidence to show that alternative therapies, such as exercises, acupuncture or chiropractic treatments, help your baby change from a breech presentation to headfirst.

If your baby remains breech, your doctor may discuss having a breech vaginal birth. Not all doctors and hospitals offer this option. They may also suggest you birth your baby with a planned caesarean section .

If your baby’s presentation is headfirst but the position of your baby’s head is not ideal for labour, it can lead to a longer labour, and potential complications . The position of your baby’s head will often change as your labour progresses. If it doesn’t, sometimes you can still give birth without assistance, or you may need your doctor to help turn your baby’s head or help your birth with a vacuum or forceps .

Any procedure or decision for a type of birth will only go ahead with your consent . You will be able to discuss all the options with your doctor, and based on your preferences for yourself and your baby’s safety, make a decision together .

Resources and support

The Royal Australian and New Zealand College of Obstetrics and Gynaecology has a factsheet about the options available to you if your baby is in a breech presentation at the end of your pregnancy .

Mercy Perinatal has information on external cephalic version (ECV) safety and benefits if your baby is in a breech presentation at the end of your pregnancy.

The Women’s Hospital has information about the different presentations and positions your baby could be in, and how it can affect your birthing experience.

is cephalic presentation back to back

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Last reviewed: October 2023

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External cephalic version (ecv), malpresentation, breech pregnancy, search our site for.

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Breech Presentation at the End of your Pregnancy

Breech presentation occurs when your baby is lying bottom first or feet first in the uterus (womb) rather than the usual head first position. In early pregnancy, a breech position is very common.

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When a baby is positioned bottom-down late in pregnancy, this is called the breech position. Find out about 3 main types and safe birthing options.

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Pregnancy, Birth & Baby

Malpresentation is when your baby is in an unusual position as the birth approaches. Sometimes it’s possible to move the baby, but a caesarean maybe safer.

Labour complications

Even if you’re healthy and well prepared for childbirth, there’s always a chance of unexpected problems. Learn more about labour complications.

ECV is a procedure to try to move your baby from a breech position to a head-down position. This is performed by a trained doctor.

Having a baby

The articles in this section relate to having a baby – what to consider before becoming pregnant, pregnancy and birth, and after your baby is born.

Anatomy of pregnancy and birth - pelvis

Your pelvis helps to carry your growing baby and is tailored for vaginal births. Learn more about the structure and function of the female pelvis.

Planned or elective caesarean

There are important things to consider if you are having a planned or elective caesarean such as what happens during and after the procedure.

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Delivery, face and brow presentation.

Julija Makajeva ; Mohsina Ashraf .

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Last Update: January 9, 2023 .

  • Continuing Education Activity

Face and brow presentation is a malpresentation during labor when the presenting part is either the face or, in the case of brow presentation, it is the area between the orbital ridge and the anterior fontanelle. This activity reviews the evaluation and management of these two presentations and explains the role of the interprofessional team in managing delivery safely for both the mother and the baby.

  • Describe the mechanism of labor in the face and brow presentation.
  • Summarize potential maternal and fetal complications during the face and brow presentations.
  • Review different management approaches for the face and brow presentation.
  • Outline some interprofessional strategies that will improve patient outcomes in delivery cases with face and brow presentation issues.
  • Introduction

The term presentation describes the leading part of the fetus or the anatomical structure closest to the maternal pelvic inlet during labor. The presentation can roughly be divided into the following classifications: cephalic, breech, shoulder, and compound. Cephalic presentation is the most common and can be further subclassified as vertex, sinciput, brow, face, and chin. The most common presentation in term labor is the vertex, where the fetal neck is flexed to the chin, minimizing the head circumference.

Face presentation – an abnormal form of cephalic presentation where the presenting part is mentum. This typically occurs because of hyperextension of the neck and the occiput touching the fetal back. Incidence of face presentation is rare, accounting for approximately 1 in 600 of all presentations. [1] [2] [3]

In brow presentation, the neck is not extended as much as in face presentation, and the leading part is the area between the anterior fontanelle and the orbital ridges. Brow presentation is considered the rarest of all malpresentation with a prevalence of 1 in 500 to 1 in 4000 deliveries. [3]

Both face and brow presentations occur due to extension of the fetal neck instead of flexion; therefore, conditions that would lead to hyperextension or prevent flexion of the fetal neck can all contribute to face or brow presentation. These risk factors may be related to either the mother or the fetus. Maternal risk factors are preterm delivery, contracted maternal pelvis, platypelloid pelvis, multiparity, previous cesarean section, black race. Fetal risk factors include anencephaly, multiple loops of cord around the neck, masses of the neck, macrosomia, polyhydramnios. [2] [4] [5]

These malpresentations are usually diagnosed during the second stage of labor when performing a digital examination. It is possible to palpate orbital ridges, nose, malar eminences, mentum, mouth, gums, and chin in face presentation. Based on the position of the chin, face presentation can be further divided into mentum anterior, posterior, or transverse. In brow presentation, anterior fontanelle and face can be palpated except for the mouth and the chin. Brow presentation can then be further described based on the position of the anterior fontanelle as frontal anterior, posterior, or transverse.

Diagnosing the exact presentation can be challenging, and face presentation may be misdiagnosed as frank breech. To avoid any confusion, a bedside ultrasound scan can be performed. [6]  The ultrasound imaging can show a reduced angle between the occiput and the spine or, the chin is separated from the chest. However, ultrasound does not provide much predicting value in the outcome of the labor. [7]

  • Anatomy and Physiology

Before discussing the mechanism of labor in the face or brow presentation, it is crucial to highlight some anatomical landmarks and their measurements. 

Planes and Diameters of the Pelvis

The three most important planes in the female pelvis are the pelvic inlet, mid pelvis, and pelvic outlet. 

Four diameters can describe the pelvic inlet: anteroposterior, transverse, and two obliques. Furthermore, based on the different landmarks on the pelvic inlet, there are three different anteroposterior diameters, named conjugates: true conjugate, obstetrical conjugate, and diagonal conjugate. Only the latter can be measured directly during the obstetric examination. The shortest of these three diameters is obstetrical conjugate, which measures approximately 10.5 cm and is a distance between the sacral promontory and 1 cm below the upper border of the symphysis pubis. This measurement is clinically significant as the fetal head must pass through this diameter during the engagement phase. The transverse diameter measures about 13.5cm and is the widest distance between the innominate line on both sides. 

The shortest distance in the mid pelvis is the interspinous diameter and usually is only about 10 cm. 

Fetal Skull Diameters

There are six distinguished longitudinal fetal skull diameters:

  • Suboccipito-bregmatic: from the center of anterior fontanelle (bregma) to the occipital protuberance, measuring 9.5 cm. This is the presenting diameter in vertex presentation. 
  • Suboccipito-frontal: from the anterior part of bregma to the occipital protuberance, measuring 10 cm 
  • Occipito-frontal: from the root of the nose to the most prominent part of the occiput, measuring 11.5cm
  • Submento-bregmatic: from the center of the bregma to the angle of the mandible, measuring 9.5 cm. This is the presenting diameter in face presentation where the neck is hyperextended. 
  • Submento-vertical: from the midpoint between fontanelles and the angle of the mandible, measuring 11.5cm 
  • Occipito-mental: from the midpoint between fontanelles and the tip of the chin, measuring 13.5 cm. It is the presenting diameter in brow presentation. 

Cardinal Movements of Normal Labor

  • Neck flexion
  • Internal rotation
  • Extension (delivers head)
  • External rotation (Restitution)
  • Expulsion (delivery of anterior and posterior shoulders)

Some of the key movements are not possible in the face or brow presentations.  

Based on the information provided above, it is obvious that labor will be arrested in brow presentation unless it spontaneously changes to face or vertex, as the occipito-mental diameter of the fetal head is significantly wider than the smallest diameter of the female pelvis. Face presentation can, however, be delivered vaginally, and further mechanisms of face delivery will be explained in later sections.

  • Indications

As mentioned previously, spontaneous vaginal delivery can be successful in face presentation. However, the main indication for vaginal delivery in such circumstances would be a maternal choice. It is crucial to have a thorough conversation with a mother, explaining the risks and benefits of vaginal delivery with face presentation and a cesarean section. Informed consent and creating a rapport with the mother is an essential aspect of safe and successful labor.

  • Contraindications

Vaginal delivery of face presentation is contraindicated if the mentum is lying posteriorly or is in a transverse position. In such a scenario, the fetal brow is pressing against the maternal symphysis pubis, and the short fetal neck, which is already maximally extended, cannot span the surface of the maternal sacrum. In this position, the diameter of the head is larger than the maternal pelvis, and it cannot descend through the birth canal. Therefore the cesarean section is recommended as the safest mode of delivery for mentum posterior face presentations. 

Attempts to manually convert face presentation to vertex, manual or forceps rotation of the persistent posterior chin to anterior are contraindicated as they can be dangerous.

Persistent brow presentation itself is a contraindication for vaginal delivery unless the fetus is significantly small or the maternal pelvis is large.

Continuous electronic fetal heart rate monitoring is recommended for face and brow presentations, as heart rate abnormalities are common in these scenarios. One study found that only 14% of the cases with face presentation had no abnormal traces on the cardiotocograph. [8] It is advised to use external transducer devices to prevent damage to the eyes. When internal monitoring is inevitable, it is suggested to place monitoring devices on bony parts carefully. 

People who are usually involved in the delivery of face/ brow presentation are:

  • Experienced midwife, preferably looking after laboring woman 1:1
  • Senior obstetrician 
  • Neonatal team - in case of need for resuscitation 
  • Anesthetic team - to provide necessary pain control (e.g., epidural)
  • Theatre team  - in case of failure to progress and an emergency cesarean section will be required.
  • Preparation

No specific preparation is required for face or brow presentation. However, it is essential to discuss the labor options with the mother and birthing partner and inform members of the neonatal, anesthetic, and theatre co-ordinating teams.

  • Technique or Treatment

Mechanism of Labor in Face Presentation

During contractions, the pressure exerted by the fundus of the uterus on the fetus and pressure of amniotic fluid initiate descent. During this descent, the fetal neck extends instead of flexing. The internal rotation determines the outcome of delivery, if the fetal chin rotates posteriorly, vaginal delivery would not be possible, and cesarean section is permitted. The approach towards mentum-posterior delivery should be individualized, as the cases are rare. Expectant management is acceptable in multiparous women with small fetuses, as a spontaneous mentum-anterior rotation can occur. However, there should be a low threshold for cesarean section in primigravida women or women with large fetuses.

When the fetal chin is rotated towards maternal symphysis pubis as described as mentum-anterior; in these cases further descend through the vaginal canal continues with approximately 73% cases deliver spontaneously. [9] Fetal mentum presses on the maternal symphysis pubis, and the head is delivered by flexion. The occiput is pointing towards the maternal back, and external rotation happens. Shoulders are delivered in the same manner as in vertex delivery.

Mechanism of Labor in Brow Presentation

As this presentation is considered unstable, it is usually converted into a face or an occiput presentation. Due to the cephalic diameter being wider than the maternal pelvis, the fetal head cannot engage; thus, brow delivery cannot take place. Unless the fetus is small or the pelvis is very wide, the prognosis for vaginal delivery is poor. With persistent brow presentation, a cesarean section is required for safe delivery.

  • Complications

As the cesarean section is becoming a more accessible mode of delivery in malpresentations, the incidence of maternal and fetal morbidity and mortality during face presentation has dropped significantly. [10]

However, there are still some complications associated with the nature of labor in face presentation. Due to the fetal head position, it is more challenging for the head to engage in the birth canal and descend, resulting in prolonged labor.

Prolonged labor itself can provoke foetal distress and arrhythmias. If the labor arrests or signs of fetal distress appear on CTG, the recommended next step in management is an emergency cesarean section, which in itself carries a myriad of operative and post-operative complications.

Finally, due to the nature of the fetal position and prolonged duration of labor in face presentation, neonates develop significant edema of the skull and face. Swelling of the fetal airway may also be present, resulting in respiratory distress after birth and possible intubation.

  • Clinical Significance

During vertex presentation, the fetal head flexes, bringing the chin to the chest, forming the smallest possible fetal head diameter, measuring approximately 9.5cm. With face and brow presentation, the neck hyperextends, resulting in greater cephalic diameters. As a result, the fetal head will engage later, and labor will progress more slowly. Failure to progress in labor is also more common in both presentations compared to vertex presentation.

Furthermore, when the fetal chin is in a posterior position, this prevents further flexion of the fetal neck, as browns are pressing on the symphysis pubis. As a result, descend through the birth canal is impossible. Such presentation is considered undeliverable vaginally and requires an emergency cesarean section.

Manual attempts to change face presentation to vertex, manual or forceps rotation to mentum anterior are considered dangerous and are discouraged.

  • Enhancing Healthcare Team Outcomes

A multidisciplinary team of healthcare experts supports the woman and her child during labor and the perinatal period. For a face or brow presentation to be appropriately diagnosed, an experienced midwife and obstetrician must be involved in the vaginal examination and labor monitoring. As fetal anomalies, such as anencephaly or goiter, can contribute to face presentation, sonographers experienced in antenatal scanning should also be involved in the care. It is advised to inform the anesthetic and neonatal teams in advance of the possible need for emergency cesarean section and resuscitation of the neonate. [11] [12]

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Disclosure: Julija Makajeva declares no relevant financial relationships with ineligible companies.

Disclosure: Mohsina Ashraf declares no relevant financial relationships with ineligible companies.

This book is distributed under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) ( http://creativecommons.org/licenses/by-nc-nd/4.0/ ), which permits others to distribute the work, provided that the article is not altered or used commercially. You are not required to obtain permission to distribute this article, provided that you credit the author and journal.

  • Cite this Page Makajeva J, Ashraf M. Delivery, Face and Brow Presentation. [Updated 2023 Jan 9]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan-.

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  • Sonographic diagnosis of fetal head deflexion and the risk of cesarean delivery. [Am J Obstet Gynecol MFM. 2020] Sonographic diagnosis of fetal head deflexion and the risk of cesarean delivery. Bellussi F, Livi A, Cataneo I, Salsi G, Lenzi J, Pilu G. Am J Obstet Gynecol MFM. 2020 Nov; 2(4):100217. Epub 2020 Aug 18.
  • Review Sonographic evaluation of the fetal head position and attitude during labor. [Am J Obstet Gynecol. 2022] Review Sonographic evaluation of the fetal head position and attitude during labor. Ghi T, Dall'Asta A. Am J Obstet Gynecol. 2022 Jul 6; . Epub 2022 Jul 6.
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Fetal Presentation, Position, and Lie (Including Breech Presentation)

  • Key Points |

Abnormal fetal lie or presentation may occur due to fetal size, fetal anomalies, uterine structural abnormalities, multiple gestation, or other factors. Diagnosis is by examination or ultrasonography. Management is with physical maneuvers to reposition the fetus, operative vaginal delivery , or cesarean delivery .

Terms that describe the fetus in relation to the uterus, cervix, and maternal pelvis are

Fetal presentation: Fetal part that overlies the maternal pelvic inlet; vertex (cephalic), face, brow, breech, shoulder, funic (umbilical cord), or compound (more than one part, eg, shoulder and hand)

Fetal position: Relation of the presenting part to an anatomic axis; for transverse presentation, occiput anterior, occiput posterior, occiput transverse

Fetal lie: Relation of the fetus to the long axis of the uterus; longitudinal, oblique, or transverse

Normal fetal lie is longitudinal, normal presentation is vertex, and occiput anterior is the most common position.

Abnormal fetal lie, presentation, or position may occur with

Fetopelvic disproportion (fetus too large for the pelvic inlet)

Fetal congenital anomalies

Uterine structural abnormalities (eg, fibroids, synechiae)

Multiple gestation

Several common types of abnormal lie or presentation are discussed here.

is cephalic presentation back to back

Transverse lie

Fetal position is transverse, with the fetal long axis oblique or perpendicular rather than parallel to the maternal long axis. Transverse lie is often accompanied by shoulder presentation, which requires cesarean delivery.

Breech presentation

There are several types of breech presentation.

Frank breech: The fetal hips are flexed, and the knees extended (pike position).

Complete breech: The fetus seems to be sitting with hips and knees flexed.

Single or double footling presentation: One or both legs are completely extended and present before the buttocks.

Types of breech presentations

Breech presentation makes delivery difficult ,primarily because the presenting part is a poor dilating wedge. Having a poor dilating wedge can lead to incomplete cervical dilation, because the presenting part is narrower than the head that follows. The head, which is the part with the largest diameter, can then be trapped during delivery.

Additionally, the trapped fetal head can compress the umbilical cord if the fetal umbilicus is visible at the introitus, particularly in primiparas whose pelvic tissues have not been dilated by previous deliveries. Umbilical cord compression may cause fetal hypoxemia.

is cephalic presentation back to back

Predisposing factors for breech presentation include

Preterm labor

Uterine abnormalities

Fetal anomalies

If delivery is vaginal, breech presentation may increase risk of

Umbilical cord prolapse

Birth trauma

Perinatal death

is cephalic presentation back to back

Face or brow presentation

In face presentation, the head is hyperextended, and position is designated by the position of the chin (mentum). When the chin is posterior, the head is less likely to rotate and less likely to deliver vaginally, necessitating cesarean delivery.

Brow presentation usually converts spontaneously to vertex or face presentation.

Occiput posterior position

The most common abnormal position is occiput posterior.

The fetal neck is usually somewhat deflexed; thus, a larger diameter of the head must pass through the pelvis.

Progress may arrest in the second phase of labor. Operative vaginal delivery or cesarean delivery is often required.

Position and Presentation of the Fetus

If a fetus is in the occiput posterior position, operative vaginal delivery or cesarean delivery is often required.

In breech presentation, the presenting part is a poor dilating wedge, which can cause the head to be trapped during delivery, often compressing the umbilical cord.

For breech presentation, usually do cesarean delivery at 39 weeks or during labor, but external cephalic version is sometimes successful before labor, usually at 37 or 38 weeks.

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Breech, posterior, transverse lie: What position is my baby in?

Layan Alrahmani, M.D.

Fetal presentation, or how your baby is situated in your womb at birth, is determined by the body part that's positioned to come out first, and it can affect the way you deliver. At the time of delivery, 97 percent of babies are head-down (cephalic presentation). But there are several other possibilities, including feet or bottom first (breech) as well as sideways (transverse lie) and diagonal (oblique lie).

Fetal presentation and position

During the last trimester of your pregnancy, your provider will check your baby's presentation by feeling your belly to locate the head, bottom, and back. If it's unclear, your provider may do an ultrasound or an internal exam to feel what part of the baby is in your pelvis.

Fetal position refers to whether the baby is facing your spine (anterior position) or facing your belly (posterior position). Fetal position can change often: Your baby may be face up at the beginning of labor and face down at delivery.

Here are the many possibilities for fetal presentation and position in the womb.

Medical illustrations by Jonathan Dimes

Head down, facing down (anterior position)

A baby who is head down and facing your spine is in the anterior position. This is the most common fetal presentation and the easiest position for a vaginal delivery.

This position is also known as "occiput anterior" because the back of your baby's skull (occipital bone) is in the front (anterior) of your pelvis.

Head down, facing up (posterior position)

In the posterior position , your baby is head down and facing your belly. You may also hear it called "sunny-side up" because babies who stay in this position are born facing up. But many babies who are facing up during labor rotate to the easier face down (anterior) position before birth.

Posterior position is formally known as "occiput posterior" because the back of your baby's skull (occipital bone) is in the back (posterior) of your pelvis.

Frank breech

In the frank breech presentation, both the baby's legs are extended so that the feet are up near the face. This is the most common type of breech presentation. Breech babies are difficult to deliver vaginally, so most arrive by c-section .

Some providers will attempt to turn your baby manually to the head down position by applying pressure to your belly. This is called an external cephalic version , and it has a 58 percent success rate for turning breech babies. For more information, see our article on breech birth .

Complete breech

A complete breech is when your baby is bottom down with hips and knees bent in a tuck or cross-legged position. If your baby is in a complete breech, you may feel kicking in your lower abdomen.

Incomplete breech

In an incomplete breech, one of the baby's knees is bent so that the foot is tucked next to the bottom with the other leg extended, positioning that foot closer to the face.

Single footling breech

In the single footling breech presentation, one of the baby's feet is pointed toward your cervix.

Double footling breech

In the double footling breech presentation, both of the baby's feet are pointed toward your cervix.

Transverse lie

In a transverse lie, the baby is lying horizontally in your uterus and may be facing up toward your head or down toward your feet. Babies settle this way less than 1 percent of the time, but it happens more commonly if you're carrying multiples or deliver before your due date.

If your baby stays in a transverse lie until the end of your pregnancy, it can be dangerous for delivery. Your provider will likely schedule a c-section or attempt an external cephalic version , which is highly successful for turning babies in this position.

Oblique lie

In rare cases, your baby may lie diagonally in your uterus, with his rump facing the side of your body at an angle.

Like the transverse lie, this position is more common earlier in pregnancy, and it's likely your provider will intervene if your baby is still in the oblique lie at the end of your third trimester.

Was this article helpful?

What to know if your baby is breech

diagram of breech baby, facing head-up in uterus

What's a sunny-side up baby?

pregnant woman resting on birth ball

What happens to your baby right after birth

A newborn baby wrapped in a receiving blanket in the hospital.

How your twins’ fetal positions affect labor and delivery

illustration of twin babies head down in utero

BabyCenter's editorial team is committed to providing the most helpful and trustworthy pregnancy and parenting information in the world. When creating and updating content, we rely on credible sources: respected health organizations, professional groups of doctors and other experts, and published studies in peer-reviewed journals. We believe you should always know the source of the information you're seeing. Learn more about our editorial and medical review policies .

Ahmad A et al. 2014. Association of fetal position at onset of labor and mode of delivery: A prospective cohort study. Ultrasound in obstetrics & gynecology 43(2):176-182. https://www.ncbi.nlm.nih.gov/pubmed/23929533 Opens a new window [Accessed September 2021]

Gray CJ and Shanahan MM. 2019. Breech presentation. StatPearls.  https://www.ncbi.nlm.nih.gov/books/NBK448063/ Opens a new window [Accessed September 2021]

Hankins GD. 1990. Transverse lie. American Journal of Perinatology 7(1):66-70.  https://www.ncbi.nlm.nih.gov/pubmed/2131781 Opens a new window [Accessed September 2021]

Medline Plus. 2020. Your baby in the birth canal. U.S. National Library of Medicine. https://medlineplus.gov/ency/article/002060.htm Opens a new window [Accessed September 2021]

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Your baby in the birth canal

During labor and delivery, your baby must pass through your pelvic bones to reach the vaginal opening. The goal is to find the easiest way out. Certain body positions give the baby a smaller shape, which makes it easier for your baby to get through this tight passage.

The best position for the baby to pass through the pelvis is with the head down and the body facing toward the mother's back. This position is called occiput anterior.

Information

Certain terms are used to describe your baby's position and movement through the birth canal.

FETAL STATION

Fetal station refers to where the presenting part is in your pelvis.

  • The presenting part. The presenting part is the part of the baby that leads the way through the birth canal. Most often, it is the baby's head, but it can be a shoulder, the buttocks, or the feet.
  • Ischial spines. These are bone points on the mother's pelvis. Normally the ischial spines are the narrowest part of the pelvis.
  • 0 station. This is when the baby's head is even with the ischial spines. The baby is said to be "engaged" when the largest part of the head has entered the pelvis.
  • If the presenting part lies above the ischial spines, the station is reported as a negative number from -1 to -5.

In first-time moms, the baby's head may engage by 36 weeks into the pregnancy. However, engagement may happen later in the pregnancy, or even during labor.

This refers to how the baby's spine lines up with the mother's spine. Your baby's spine is between their head and tailbone.

Your baby will most often settle into a position in the pelvis before labor begins.

  • If your baby's spine runs in the same direction (parallel) as your spine, the baby is said to be in a longitudinal lie. Nearly all babies are in a longitudinal lie.
  • If the baby is sideways (at a 90-degree angle to your spine), the baby is said to be in a transverse lie.

FETAL ATTITUDE

The fetal attitude describes the position of the parts of your baby's body.

The normal fetal attitude is commonly called the fetal position.

  • The head is tucked down to the chest.
  • The arms and legs are drawn in towards the center of the chest.

Abnormal fetal attitudes include a head that is tilted back, so the brow or the face presents first. Other body parts may be positioned behind the back. When this happens, the presenting part will be larger as it passes through the pelvis. This makes delivery more difficult.

DELIVERY PRESENTATION

Delivery presentation describes the way the baby is positioned to come down the birth canal for delivery.

The best position for your baby inside your uterus at the time of delivery is head down. This is called cephalic presentation.

  • This position makes it easier and safer for your baby to pass through the birth canal. Cephalic presentation occurs in about 97% of deliveries.
  • There are different types of cephalic presentation, which depend on the position of the baby's limbs and head (fetal attitude).

If your baby is in any position other than head down, your doctor may recommend a cesarean delivery.

Breech presentation is when the baby's bottom is down. Breech presentation occurs about 3% of the time. There are a few types of breech:

  • A complete breech is when the buttocks present first and both the hips and knees are flexed.
  • A frank breech is when the hips are flexed so the legs are straight and completely drawn up toward the chest.
  • Other breech positions occur when either the feet or knees present first.

The shoulder, arm, or trunk may present first if the fetus is in a transverse lie. This type of presentation occurs less than 1% of the time. Transverse lie is more common when you deliver before your due date, or have twins or triplets.

CARDINAL MOVEMENTS OF LABOR

As your baby passes through the birth canal, the baby's head will change positions. These changes are needed for your baby to fit and move through your pelvis. These movements of your baby's head are called cardinal movements of labor.

  • This is when the widest part of your baby's head has entered the pelvis.
  • Engagement tells your health care provider that your pelvis is large enough to allow the baby's head to move down (descend).
  • This is when your baby's head moves down (descends) further through your pelvis.
  • Most often, descent occurs during labor, either as the cervix dilates or after you begin pushing.
  • During descent, the baby's head is flexed down so that the chin touches the chest.
  • With the chin tucked, it is easier for the baby's head to pass through the pelvis.

Internal Rotation

  • As your baby's head descends further, the head will most often rotate so the back of the head is just below your pubic bone. This helps the head fit the shape of your pelvis.
  • Usually, the baby will be face down toward your spine.
  • Sometimes, the baby will rotate so it faces up toward the pubic bone.
  • As your baby's head rotates, extends, or flexes during labor, the body will stay in position with one shoulder down toward your spine and one shoulder up toward your belly.
  • As your baby reaches the opening of the vagina, usually the back of the head is in contact with your pubic bone.
  • At this point, the birth canal curves upward, and the baby's head must extend back. It rotates under and around the pubic bone.

External Rotation

  • As the baby's head is delivered, it will rotate a quarter turn to be in line with the body.
  • After the head is delivered, the top shoulder is delivered under the pubic bone.
  • After the shoulder, the rest of the body is usually delivered without a problem.

Alternative Names

Shoulder presentation; Malpresentations; Breech birth; Cephalic presentation; Fetal lie; Fetal attitude; Fetal descent; Fetal station; Cardinal movements; Labor-birth canal; Delivery-birth canal

Childbirth

Barth WH. Malpresentations and malposition. In: Landon MB, Galan HL, Jauniaux ERM, et al, eds. Gabbe's Obstetrics: Normal and Problem Pregnancies . 8th ed. Philadelphia, PA: Elsevier; 2021:chap 17.

Kilpatrick SJ, Garrison E, Fairbrother E. Normal labor and delivery. In: Landon MB, Galan HL, Jauniaux ERM, et al, eds. Gabbe's Obstetrics: Normal and Problem Pregnancies . 8th ed. Philadelphia, PA: Elsevier; 2021:chap 11.

Review Date 11/10/2022

Updated by: John D. Jacobson, MD, Department of Obstetrics and Gynecology, Loma Linda University School of Medicine, Loma Linda, CA. Also reviewed by David C. Dugdale, MD, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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Why Is Cephalic Presentation Ideal For Childbirth?

Why Is Cephalic Presentation Ideal For Childbirth?

5   Dec   2017 | 8 min Read

is cephalic presentation back to back

During labour, contractions stretch your birth canal so that your baby has adequate room to come through during birth. The cephalic presentation is the safest and easiest way for your baby to pass through the birth canal.

If your baby is in a non-cephalic position, delivery can become more challenging. Different fetal positions pose a range of difficulties and varying risks and may not be considered ideal birthing positions.

Two Kinds of Cephalic Positions

There are two kinds of cephalic positions:

  • Cephalic occiput anterior , where your baby’s head is down and is facing toward your back.
  • Cephalic occiput posterior , where your baby is positioned head down, but they are facing your abdomen instead of your back. This position is also nicknamed ‘sunny-side-up’ and can increase the chances of prolonged and painful delivery. 

How to Know if Your Baby is In a Cephalic Position?

You can feel your baby’s position by rubbing your hand on your belly. If you feel your little one’s stomach in the upper stomach, then your baby is in a cephalic position. But if you feel their kicks in the lower stomach, then it could mean that your baby is in a breech position.

You can also determine whether your baby is in the anterior or posterior cephalic position. If your baby is in the anterior position, you may feel their movement underneath your ribs and your belly button could also pop out. If your baby is in the posterior position, then you may feel their kicks in their abdomen, and your stomach may appear rounded up instead of flat. 

You can also determine your baby’s position through an ultrasound scan or a physical examination at your healthcare provider’s office. 

Benefits of Cephalic Presentation in Pregnancy

Cephalic presentation is one of the most ideal birth positions, and has the following benefits:

  • It is the safest way to give birth as your baby’s position is head-down and prevents the risk of any injuries.
  • It can help your baby move through the delivery canal as safely and easily as possible.
  • It increases the chances of smooth labour and delivery.

Are There Any Risks Involved in Cephalic Position?

Conditions like a cephalic posterior position in addition to a narrow pelvis of the mother can increase the risk of pregnancy complications during delivery. Some babies in the head-first cephalic presentation might have their heads tilted backward. This may, in some rare cases, cause preterm delivery.

What are the Risks Associated with Other Birth Positions?

Cephalic Presentation

A small percentage of babies may settle into a non-cephalic position before their birth. This can pose risks to both your and your baby’s health, and also influence the way in which you deliver. 

In the next section, we have discussed a few positions that your baby can settle in throughout pregnancy, as they move around the uterus. But as they grow old, there will be less space for them to tumble around, and they will settle into their final position. This is when non-cephalic positions can pose a risk.  

Breech Position

There are three types of breech fetal positioning:

  • Frank breech : Your baby’s legs stick straight up along with their feet near their head.
  • Footling breech: One or both of your baby’s legs are lowered over your cervix.
  • Complete breech: Your baby is positioned bottom-first with their knees bent.

If your baby is in a breech position , vaginal delivery is considered complicated. When a baby is born in breech position, the largest part of their body, that is, their head is delivered last. This can lead to injury or even fetal distress. Moreover, the umbilical cord may also get damaged or get wrapped around your baby’s neck, cutting off their oxygen supply.  

If your baby is in a breech position, your healthcare provider may recommend a c-section, or they may try ways to flip your baby’s position in a cephalic presentation.

Transverse Lie

In this position, your baby settles in sideways across the uterus rather than being in a vertical position. They may be:

  • Head-down, with their back facing the birth canal
  • One shoulder pointing toward the birth canal
  • Up with their hands and feet facing the birth canal

If your baby settles in this position, then your healthcare provider may suggest a c-section to reduce the risk of distress in your baby and other pregnancy complications.

Turning Your Baby Into A Cephalic Position

External cephalic version (ECV) is a common, and non-invasive procedure that helps turn your baby into a cephalic position while they are in the womb. However, your healthcare provider may only consider this procedure if they consider you have a stable health condition in the last trimester, and if your baby hasn’t changed their position by the 36th week.

You can also try some natural remedies to change your baby’s position, such as:

  • Lying in a bridge position: Movements like bridge position can sometimes help move your baby into a more suitable position. Lie on your back with your feet flat on the ground and your legs bent. Raise your pelvis and hips into a bridge position and hold for 5-10 minutes. Repeat several times daily.
  • Chiropractic care: A chiropractor can help with the adjustment of your baby’s position and also reduce stress in them.
  • Acupuncture: After your doctor’s go-ahead, you can also consider acupuncture to get your baby to settle into an ideal birthing position.

While most babies settle in a cephalic presentation by the 36th week of pregnancy, some may lie in a breech or transverse position before birth. Since the cephalic position is considered the safest, your doctor may recommend certain procedures to flip your baby’s position to make your labour and delivery smooth. You may also try the natural methods that we discussed above to get your baby into a safe birthing position and prevent risks or other pregnancy complications. 

When Should A Baby Be In A Cephalic Position?

Your baby would likely naturally drop into a cephalic position between weeks 37 to 40 of your pregnancy .

Is Cephalic Position Safe?

Research shows that 95% of babies take the cephalic position a few weeks or days before their due date. It is considered to be the safest position. It ensures a smooth birthing process.

While most of the babies are in cephalic position at delivery, this is not always the case. If you have a breech baby, you can discuss the available options for delivery with your doctor.

Does cephalic presentation mean labour is near?

Head-down is the ideal position for your baby within your uterus during birth. This is known as the cephalic position. This posture allows your baby to pass through the delivery canal more easily and safely.

Can babies change from cephalic to breech?

The external cephalic version (ECV) is the most frequent procedure used for turning a breech infant.

How can I keep my baby in a cephalic position?

While your baby naturally gets into this position, you can try some exercises to ensure that they settle in cephalic presentation. Exercises such as breech tilt, forward-leaning position (spinning babies program), cat and camel pose can help.

Stitches after a normal delivery : How many stitches do you need after a vaginal delivery? Tap this post to know.

Vaginal birth after caesarean delivery : Learn all about the precautions to consider before having a vaginal delivery after a c-section procedure. 

How many c-sections can you have : Tap this post to know the total number of c-sections that you can safely have.

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is cephalic presentation back to back

Determining Normal Fetal Situs (Situs Solitus)

One of the first steps in obtaining cardiac views is to determine how the fetus is oriented within the uterus and to determine the right and left side of the abdominal contents versus the right and left side of the heart and thoracic contents.  This is not as easy as it might seem since the fetal left side can be on the maternal right and the opposite can be true.

In summary, situs refers to the right and left orientation of fetal organs.  For example situs solitus is the normal left to right axis arrangement in the fetus with the stomach and spleen on the left side of the body, and the liver and gallbladder on the right side.

FN.Situssolitus

Visual Summary of Normal Fetal Situs

Below are steps required to determine situs related to cephalic or breech presentation, and whether the spine or back is up (anterior) or down (posterior).

1.  Determine the lie of the fetus:

A.  Is the fetus head first with the head in front of the ultrasound screen?  This could also be termed cephalic or vertex presentation. B.  Is the fetal feet or bottom first with the head behind the screen?  This could also be termed footling or breech presentation. C.  Determine whether the spine or back is anterior (back up) or posterior (back down).

2.  Obtain a transverse cut of the thorax to demonstrate a 4-chamber view.  The left atrium is nearest the spine and the cardiac axis points to the left.

Detailed Method to Determine Fetal Situs

1.  Define within the uterus the presentation of the fetus (generally vertex or breech; less often the presentation is oblique or transverse.).

2.  Determine whether the fetal spine is parallel or transverse to the maternal spine.  In sagittal view, if the fetal and maternal spine are parallel, the fetus is in longitudinal lie.  When the fetal spine is perpendicular to the maternal spine, the fetus is in a transverse lie.

3.  Determine the position of the fetal left side.  The fetal left side will be as follows: A.  With respect to the maternal abdomen, the fetal left side is anterior and near to the ultrasound transducer. B.  With respect to the posterior uterine wall, the fetal left side is posterior and farthest from the transducer. C.  With respect to the right uterine wall, the fetal left side will be on the maternal right. D.  With respect to the left uterine wall, the fetal left side will be on the maternal left.

4.  Obtain a transverse view of the abdomen and define the fetal stomach which is positioned in the left side of the fetal abdomen.

5.  Obtain a 4-chamber view of the heart by obtaining a transverse view of the thorax.  The left atrium and descending aorta are nearest to the spine and the cardiac axis points to the left.

6.  Finally, ascertain if the stomach and heart are in their correct respective locations, i.e., the stomach is on the left side and the cardiac axis points to the left.

7.  Place a transverse image of the fetal abdomen and heart side by side and validate that the left side of the fetal abdomen (stomach near to the spine) is concordant with the left side of the fetal heart (left atrium and descending aorta near to the spine).  This is done by displaying a side by side comparison of a transverse view through the fetal stomach and a 4-chamber cardiac view.

FN.Chartfinal

Above.  Normal ultrasound orientation for situs solitus.

Right Hand Rule of Thumb:  Introduction

In their article “Sonographic definition of the fetal situs,” Bronshtein, Gover, and Zimmer [ 1 ]  describe a “right hand rule of thumb” to define fetal situs during transabdominal scanning, and a “left hand rule of thumb” for transvaginal scanning.

FN.hand2

Right Hand Rule of Thumb:  Cephalic, supine, back down

FN.Cep.BD

Left.   The sonographer’s right hand represents the fetus with the thumb pointing to the fetal left.  The palm of the hand is anterior, or represents the ventral or face surface of the fetus.  The fetus is therefore face up, back down, and the thumb points to the fetal left.

Right.   Again, the imaginary fetus is back down with the stomach and cardiac axis pointing to the left.  (Ignore color scheme of fetal heart and vessels.)

FN.CepUS.BD

Right Hand Rule of Thumb:  Cephalic, prone, back up

FN.Cep.BU

Left.   The sonographer’s right hand represents the fetus with the thumb pointing to the fetal left.  The top of the hand (dorsal surface or prone position) represents back up.

Right.  The imaginary fetus is back up with the stomach and cardiac axis pointing to the fetal left.

Fn.2Cep.BU

Right Hand Rule of Thumb:  Breech, supine, back down

FN.hndbabybrbkdw.us

Left.   The sonographer’s right hand represents the fetus with the thumb pointing to the fetal left.  The palm of the sonographer’s hand is anterior, or represents the ventral surface of the fetus.  The fetus is therefore face up, back down, and the thumb points to the fetal left.

Right .  The imaginary fetus is back down with the stomach and cardiac axis pointing to the left.  (Ignore color scheme of fetal heart and vessels).

FN.Br.BD

Right Hand Rule of Thumb:  Breech, prone, back up

FNBrBU

Right .  The imaginary fetus is back up with the stomach and cardiac axis pointing to the fetal left side.

FN.BRB.Uu.us

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Chapter 15:  Abnormal Cephalic Presentations

Jessica Dy; Darine El-Chaar

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Malpresentations.

  • TRANSVERSE POSITIONS OF THE OCCIPUT
  • POSTERIOR POSITIONS OF THE OCCIPUT
  • BROW PRESENTATIONS
  • MEDIAN VERTEX PRESENTATIONS: MILITARY ATTITUDE
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The fetus enters the pelvis in a cephalic presentation approximately 95 percent to 96 percent of the time. In these cephalic presentations, the occiput may be in the persistent transverse or posterior positions. In about 3 percent to 4 percent of pregnancies, there is a breech-presenting fetus (see Chapter 25 ). In the remaining 1 percent, the fetus may be either in a transverse or oblique lie (see Chapter 26 ), or the head may be extended with the face or brow presenting.

Predisposing Factors

Maternal and uterine factors.

Contracted pelvis: This is the most common and important factor

Pendulous maternal abdomen: If the uterus and fetus are allowed to fall forward, there may be difficulty in engagement

Neoplasms: Uterine fibromyomas or ovarian cysts can block the entry to the pelvis

Uterine anomalies: In a bicornuate uterus, the nonpregnant horn may obstruct labor in the pregnant one

Abnormalities of placental size or location: Conditions such as placenta previa are associated with unfavorable positions of the fetus

High parity

Fetal Factors

Errors in fetal polarity, such as breech presentation and transverse lie

Abnormal internal rotation: The occiput rotates posteriorly or fails to rotate at all

Fetal attitude: Extension in place of normal flexion

Multiple pregnancy

Fetal anomalies, including hydrocephaly and anencephaly

Polyhydramnios: An excessive amount of amniotic fluid allows the baby freedom of activity, and he or she may assume abnormal positions

Prematurity

Placenta and Membranes

Placenta previa

Cornual implantation

Premature rupture of membranes

Effects of Malpresentations

Effects on labor.

The less symmetrical adaptation of the presenting part to the cervix and to the pelvis plays a part in reducing the efficiency of labor.

The incidence of fetopelvic disproportion is higher

Inefficient uterine action is common. The contractions tend to be weak and irregular

Prolonged labor is seen frequently

Pathologic retraction rings can develop, and rupture of the lower uterine segment may be the end result

The cervix often dilates slowly and incompletely

The presenting part stays high

Premature rupture of the membranes occurs often

The need for operative delivery is increased

Effects on the Mother

Because greater uterine and intraabdominal muscular effort is required and because labor is often prolonged, maternal exhaustion is common

There is more stretching of the perineum and soft parts, and there are more lacerations

Tears of the uterus, cervix, and vagina

Uterine atony from prolonged labor

Early rupture of the membranes

Excessive blood loss

Tissue damage

Frequent rectal and vaginal examinations

Prolonged labor

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Breech presentation at or near term

Successful external cephalic version reduces the chance of a Cesarean section.

About 4% of babies are not "head first" by 36-37 weeks of pregnancy. If a baby is breech, it can make labour more complicated. For this reason, most women in Australia with a breech baby will have a planned Cesarean birth.

Fetal-Presentation-R1.png#asset:902

External cephalic version

Turning the baby around by lifting the baby's bottom out of a woman's pelvis and encouraging the baby to do a "somersault" is called an "external cephalic version" or ECV. This procedure is successful approximately 50% of the time and has been shown to be a safe and effective method to reduce the rate of breech birth and Cesarean section.

Our ECV service is based in the Fetal Monitoring Unit in the Department of Perinatal medicine. The ECVs are performed by maternal fetal medicine specialists after performing an ultrasound to check the baby's growth, position and well-being. The baby will have heart rate monitoring (cardiotocography, CTG) before and after the procedure. If you have a negative blood group ("Rhesus negative") you will also need an injection of anti-D after the procedure.

We do not always know why some babies are breech at the end of pregnancy. Sometimes the shape of the mother’s uterus or the movements of the baby may affect the way the baby lies. Most of the time we don't have a explanation.

About four per cent of babies (4 out of 100) are in breech presentation at 36 weeks gestation. By 40 weeks (your due date), about three per cent of babies (3 out of 100) are still in breech presentation.

About 1 in 4 babies that are breech at 36 weeks will turn naturally by 40 weeks. We usually can't predict which babies will turn on their own.

External cephalic version (ECV) successfully turns about 50 per cent of breech babies to the head down position when performed after 36 weeks gestation.

Breech exercises (putting your head down and bottom up for periods of time during the day) or acupuncture are thought to be safe things to try, but have never been proven to actually help. 

External cephalic version is a procedure where an obstetrician applies pressure with his or her hands on a pregnant woman’s abdomen to encourage the baby to do a somersault into the head first (cephalic) presentation.

The success rate for ECVs at Mercy Perinatal is about 50 (about half of all attempts).  An ECV is more likely to be successful if: (i) you have had a baby before, (ii) there is plenty of fluid around your baby, (iii) your baby’s bottom has yet to engage in your pelvis, and (iv) your uterine muscles are relaxed.

If your baby turns to head first and all is well, you have more than 80 per cent chance of a natural birth. However, even after a successful ECV, some labours do not progress smoothly and you may still require a caesarean.

The chance of your baby turning back to breech after a successful ECV is about 2-3% (very low).

An ECV is a safe procedure if certain precautions are taken. The chance of causing a problem for your baby during an ECV is low. Less than 1% of women need an emergency delivery within 24 hours after an ECV.  

We always perform fetal heart rate monitoring (CTG) before and after the ECV. We also perform an ultrasound to check the amount of fluid around the baby, the size of your baby and the umbilical cord position and blood flow before deciding whether it is safe to proceed with the ECV.

An appointment will be made with your obstetrician to discuss how to continue to manage your pregnancy. There is about nine per cent chance that your baby will turn to head first at some time after an unsuccessful ECV.

If your baby remains in breech position, you will be informed about the advantages and possible complications of vaginal and caesarean breech delivery. You can then make an informed decision on how you prefer to birth your baby.

If you experience labour pains or break your waters you should call the hospital immediately.  It is very important that you inform the midwife when you call that your baby is in the breech position.

Information about breech presentation

From the Royal Australian College of Obstetricians and Gynaecologists

Mercy Perinatal ECV service

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Salt Lake City School District pauses plan to train all students on what restrooms they can use

A presentation planned for students aimed to instruct kids to use the restroom of the gender they were assigned at birth..

(Rick Egan | The Salt Lake Tribune) Salt Lake City School District Superintendent Elizabeth Grant speaks during a board meeting at Glendale Middle School, on Monday, Nov. 20, 2023.

The Salt Lake City School District told parents Friday it would scrap its plan to deliver a presentation to all students about Utah’s new transgender public restroom ban, informing children about which restrooms they could use at school.

The presentation was meant to tell students, “If your sex is designated as this, you go to this bathroom, and designated as that, you go to that bathroom,” Superintendent Elizabeth Grant said at a recent school board meeting.

But a copy shared with parents beforehand apparently did not “acknowledge the existence” of transgender and nonbinary children, prompting blowback from student families, said Emerson Elementary parent Kristen Kinjo.

The district initially planned to share the presentation with students while they were in class — during homeroom or a school’s weekly broadcast, for example — by May 1, the day certain enforcement mechanisms of the law, HB257 , will go into effect.

Instead, district officials are now reaching out to impacted families directly to make sure transgender and nonbinary children “have the information they need to create a plan that meets both their student’s needs and the requirements of the law,” according to an email the district sent to parents late Friday afternoon.

If a student is not comfortable in a school restroom that the law requires them to use, the district will help them create a support plan outlined in the district’s G-24 Gender Inclusion policy , Grant said at the board meeting.

“We have students who are going to be placed in very difficult positions by this bathroom bill,” Grant added. “And what our team has done has been sensitive and attentive to the law at the same time.”

‘Lack of clarity’ on how districts should be notifying students

District spokesperson Yándary Chatwin said the district decided to roll back its original plan because of a “lack of clarity” in the law, not parent feedback.

According to the bill’s language , school districts are only required to give notice to students of how the law will work, not necessarily share a presentation like the one the district planned with all children during class.

“We were erring on the side of notifying all students, and some folks were interpreting it differently,” she said. “Our intent has been to follow the laws — to make sure that we’re complying with the requirements of us as a school district.”

Utah State Board of Education spokesperson Ryan Bartlett said in a clarifying statement sent to “education partners” Tuesday that the board “has not provided guidance or direction, nor has USBE been directed by the state Legislature to issue guidance or direction, to [local education agencies, such as school districts] regarding this bill.”

He added that school districts “will determine how best to communicate the requirements listed in the bill to the students and families in their respective communities.”

Bill sponsor Rep. Kera Birkeland, R-Morgan, later reiterated USBE’s message in a statement Thursday.

“Recognizing that each school and school district is unique, with unique students, families, and communities, that requirement is left to the determination of [local education agencies], so as long as it is communicated in a common sense, age-appropriate manner that accounts for the needs of all students,” she wrote.

School ‘should be a safe place’

The Salt Lake City School District’s initial plans also changed Friday after the wave of parent feedback, said Kinjo, whose fourth grader goes to Emerson.

“All the parent chats were blowing up,” she said, noting that the district gave parents the choice to opt their children out of the presentations. “Everyone wanted to keep their kids out of this training.”

In response, Kinjo organized a “15-minute dance party” outside of her child’s school on Friday, protesting the new law as well as the school’s planned presentation to students. There, they passed out transgender pride flags, buttons and stickers.

The school had planned to run the district’s K-5 version of the presentation during its morning announcements that day, but pulled it after Grant told all district schools to do so, according to an email Emerson’s principal sent families 35 minutes before the “dance party” and rally.

A copy of the slideshow, which Kinjo shared with The Tribune, stated: “If you were assigned a girl at birth, you need to use the girl’s bathroom ... if you were assigned a boy at birth, you need to use the boy’s bathroom at school.”

Kinjo said her issue with the district’s planned presentation was that it essentially told students they are either a boy or a girl.

“We see that as threatening an already vulnerable population of children, to tell them that they don’t exist in a space that should be a safe place,” Kinjo said.

Grant told The Tribune that she will be working with her team “about what our next steps are” regarding notifying district students of the new law.

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  2. Cephalic Presentation of Baby During Pregnancy

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  3. What is Cephalic Presentation? (with pictures)

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  4. four types of cephalic presentation #craniosacraltherapy #craniosacral

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  1. Fetal Attitude. Cephalic Presentation. Obstetrics

  2. Cephalic presentation in pregnancy #baby #preganacy #gynaecologists #apollohospitals

  3. Positions in Cephalic Presentation ll बेमिसाल Concept

  4. CEPHALIC PRESENTATION #midwifesally #preganacy #duringpregnancy

  5. cephalic position in tamil/செபாலிக் position/cephalic presentation/baby head down position in tamil

  6. CEPHALIC CARNAGE

COMMENTS

  1. Fetal Positions For Birth: Presentation, Types & Function

    Occiput or cephalic anterior: This is the best fetal position for childbirth. It means the fetus is head down, facing the birth parent's spine (facing backward). Its chin is tucked towards its chest. The fetus will also be slightly off-center, with the back of its head facing the right or left. This is called left occiput anterior or right ...

  2. Fetal Presentation, Position, and Lie (Including Breech Presentation

    In face presentation, the baby's neck arches back so that the face presents first rather than the top of the head.. In brow presentation, the neck is moderately arched so that the brow presents first.. Usually, fetuses do not stay in a face or brow presentation. These presentations often change to a vertex (top of the head) presentation before or during labor.

  3. Your Guide to Fetal Positions before Childbirth

    Head Down, Facing Down (Cephalic Presentation) This is the most common position for babies in-utero. In the cephalic presentation, the baby is head down, chin tucked to chest, facing their mother's back. This position typically allows for the smoothest delivery, as baby's head can easily move down the birth canal and under the pubic bone ...

  4. What to know about baby's position at birth

    Usually when a baby is being born in a vertex presentation the back of the baby's head, which is called the occiput, is towards the front or anterior of your pelvis and their back is towards your belly. Their chin is also typically in a flexed position, tucked into their chest. Occiput anterior is the best and safest position for a baby to be ...

  5. Cephalic Position During Labor: Purpose, Risks, and More

    The cephalic position is when a fetus is head down when it is ready to enter the birth canal. This is one of a few variations of how a fetus can rest in the womb and is considered the ideal one for labor and delivery. About 96% of babies are born in the cephalic position. Most settle into it between the 32nd and 36th weeks of pregnancy.

  6. Fetal presentation before birth

    External cephalic version involves one or two members of your health care team putting pressure on your belly with their hands to get the baby to roll into a head-down position. If the procedure isn't successful, or if the baby moves back into a transverse lie, talk with a member of your health care team about the choices you have for delivery.

  7. Common baby positions during pregnancy and labor

    Cephalic presentation, occiput anterior. This is the best position for labor. Your baby is head-down, their face is turned toward your back, and their chin is tucked to their chest. This allows the back of your baby's head to easily enter your pelvis when the time is right. Most babies settle into this position by week 36 of pregnancy.

  8. Cephalic presentation

    A cephalic presentation or head presentation or head-first presentation is a situation at childbirth where the fetus is in a longitudinal lie and the head ... with their back anterior. In this position, the baby's chin is tucked onto their chest, so that the smallest part of their head will be applied to the cervix first. The position is ...

  9. Presentation and position of baby through pregnancy and at birth

    If your baby is headfirst, the 3 main types of presentation are: anterior - when the back of your baby's head is at the front of your belly. lateral - when the back of your baby's head is facing your side. posterior - when the back of your baby's head is towards your back. Top row: 'right anterior — left anterior'.

  10. Vertex Presentation: Position, Birth & What It Means

    The vertex presentation describes the orientation a fetus should be in for a safe vaginal delivery. It becomes important as you near your due date because it tells your pregnancy care provider how they may need to deliver your baby. Vertex means "crown of the head.". This means that the crown of the fetus's head is presenting towards the ...

  11. Delivery, Face and Brow Presentation

    Face presentation - an abnormal form of cephalic presentation where the presenting part is mentum. This typically occurs because of hyperextension of the neck and the occiput touching the fetal back. Incidence of face presentation is rare, accounting for approximately 1 in 600 of all presentations. [1] [2] [3]

  12. Fetal Presentation, Position, and Lie (Including Breech Presentation)

    In breech presentation, the presenting part is a poor dilating wedge, which can cause the head to be trapped during delivery, often compressing the umbilical cord. For breech presentation, usually do cesarean delivery at 39 weeks or during labor, but external cephalic version is sometimes successful before labor, usually at 37 or 38 weeks.

  13. Fetal presentation: Breech, posterior, transverse lie, and more

    Posterior position is formally known as "occiput posterior" because the back of your baby's skull (occipital bone) is in the back (posterior) of your pelvis. Frank breech In the frank breech presentation, both the baby's legs are extended so that the feet are up near the face.

  14. Your baby in the birth canal: MedlinePlus Medical Encyclopedia

    Cephalic presentation occurs in about 97% of deliveries. There are different types of cephalic presentation, which depend on the position of the baby's limbs and head (fetal attitude). ... As your baby reaches the opening of the vagina, usually the back of the head is in contact with your pubic bone. At this point, the birth canal curves upward ...

  15. Cephalic Presentation: Meaning, Benefits, And More I BabyChakra

    The cephalic presentation is a birth position where the fetus is head down, facing backward, with their chin tucked and the back of their head ready to enter the birth canal. It is one of the variations of how a fetus rests in the womb and is considered an ideal baby birth position.

  16. External Cephalic Version (ECV): Procedure & Risks

    External cephalic version (sometimes called ECV or EV) is a procedure healthcare providers will use to rotate a baby from a breech position to a head-down position. A breech position is when a baby's feet or buttocks present first or horizontally across your uterus (called a transverse lie). A baby changes positions frequently throughout pregnancy.

  17. Fetal Situs

    Below are steps required to determine situs related to cephalic or breech presentation, and whether the spine or back is up (anterior) or down (posterior). 1. Determine the lie of the fetus: A. Is the fetus head first with the head in front of the ultrasound screen? This could also be termed cephalic or vertex presentation. B.

  18. Chapter 15: Abnormal Cephalic Presentations

    The fetus enters the pelvis in a cephalic presentation approximately 95 percent to 96 percent of the time. In these cephalic presentations, the occiput may be in the persistent transverse or posterior positions. In about 3 percent to 4 percent of pregnancies, there is a breech-presenting fetus (see Chapter 25).

  19. Breech presentation at or near term

    External cephalic version Turning the baby around by lifting the baby's bottom out of a woman's pelvis and encouraging the baby to do a "somersault" is called an "external cephalic version" or ECV. This procedure is successful approximately 50% of the time and has been shown to be a safe and effective method to reduce the rate of breech birth ...

  20. External cephalic version for breech presentation: The guideline

    Breech birth is associated with a higher rate of short-term perinatal complications compared to cephalic birth [1,2]. For breech presentation at or near term, there are three options: external cephalic version (ECV), elective cesarean section, or trial of labor in breech (breech TOL). The evidence for the effectiveness of ECV to reduce breech vaginal and cesarean deliveries is strong [3-5 ...

  21. Flexi answers

    Flexi Says: Cephalic presentation is the position of the baby's head pointing downwards, facing your back. Discuss further with Flexi. Ask your own question!

  22. Hulu Has 'Journey To The Center Of The Internet' Animated Presentation

    Hulu has given a presentation order to the adult animated comedy, from creators and writers Jon Eidson and Nick Smith and 20th Television Animation.

  23. Salt Lake City schools pause plan to train students on transgender

    The Salt Lake City School District told parents Friday it would scrap its plan to deliver a presentation to all students about Utah's new transgender public restroom ban, informing children ...