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Anterior and Posterior Placenta: What Is The Difference?


Anterior and Posterior Placenta: What Is The Difference?

The placenta is an organ that develops and grows in your uterus in pregnancy. This structure provides oxygen and nutrient to the developing fetus and removes waste from the baby’s blood. 

It attaches to the wall of your uterus and the position of it determines the nature of the type of birth you will have, vaginal or cesarean. So, Anterior and Posterior Placenta: What Is The Difference?


Placenta Positions

There are 4 positions for the placenta and all are normal for it to implant and grow:

1. anterior = front ( closest to the belly)

2. posterior = back (by your spine)

3. fundal = top of the womb

4. lateral = left or right side of the womb


The main positions are anterior and posterior, those are the ones that get all the fuss. 

Anterior and Posterior Placenta are both normal. 

The major difference is that if you have a posterior placenta then you will be able to feel the babies’ movement early in pregnancy.


Posterior Placenta

It is usually the best location for the baby. It gives them the ability to move into the anterior position right before birth. This position does not affect or interfere with the growth and development of the baby in any way.


Anterior Placenta

Having an anterior placenta may create space between the baby and your abdomen. This may diminish the sensation of the baby’s movements.



“Neither posterior or anterior placental location will affect the development or growth of a strong and healthy baby. “

Anna Targonskaya, MD – Medical Consultant. Ob/Gyn


Delivery Based on Position

In pregnancy, the position of the placenta may change or stay where it implanted. If it does change then a few things can happen.

The following are cases that highly likely will end up being a cesarian section as birth and are high risk. They may result in post-delivery hysterectomy.


Placenta Previa

This one is problematic as what happens is that the placenta grows towards the cervix and in this position, it can detach from the uterine wall and cause premature labor or internal bleeding.


Placenta Accreta

The placenta attached to way too deep into the uterine wall and instead of detaching completely at delivery, it can leave pieces. This can end up resulting in heavy bleeding which can result in hemorrhaging.

But as long as you follow your primary care physician and/or obstetricians advice, you and your baby will be alright.

Technology and Medicine are so advance that the risks are low. Care for yourself and the life you are creating inside of you. 

Stay healthy, stay safe!


You may also like:

Epidural & Labor: Q’s + A’s

The Pelvic Floor and How to Strengthen It

7 Things To Expect Postpartum 

Newborn Tips & Tricks For New Moms 


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Thanks so much for reading!


If you have any questions leave a note in the comment section below…


Adapted from Flo Health, Posterior Placenta Location. Is Posterior Positioning Good for the Baby?

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(2) Comments

  1. Like!! Thank you for publishing this awesome article.

    1. Thank you for your kind words! Glad you enjoyed this post about Anterior and Posterior Placenta and the difference between the two.

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Génesis is the founder and content creator for One Stoked Mom. A first time SAHM (stay-at-home-mom) who shares her experience through motherhood. When she isn’t caring for her daughter, she enjoys reading romance novels, ‘munching’ on dark chocolate pretzels and drinking a hot cup of coffee... She is currently working on her YouTube Channel, GenesisHere.

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