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Pamela Prindle Fierro
Pamela's Twins & Multiples Blog

By Pamela Prindle Fierro, About.com Guide to Twins & Multiples

Fraternal Twins Share Placenta?

Friday July 11, 2003
Doctors in the New England Journal of Medicine have documented a case of dizygotic (aka fraternal) twins sharing a placenta, contradicting common medical assumptions that only monozygotic (identical) share a single placenta in the womb. They acknowledge that the test-tube fertilization procedure used to conceive the twins could have been a factor influencing the placenta structure.

Learn more about zygosity and twin type.

Comments

July 26, 2007 at 7:20 pm
(1) Joshall says:

I had an ultrasound today. My twins appear to be sharing a placenta, but the membrain between them is thick. My doc is thinking that I’m having faternal twins, but dosen’t want to believe that they could share a placent. My twins were concived naturally.

April 3, 2008 at 2:18 am
(2) Roxana says:

My twins shared placenta and my doctor said they where identical but they dont anything alike, people think theyre fraternal.

November 7, 2008 at 4:05 pm
(3) serena says:

I had fraternal twins in 2001,naturally concieved.Both twins had to get transfusions as doctors told me that one had to much blood and the other hadn’t enough blood and little chance of survival. I’m confused as to wether this is twin to twin transfusion as this is supposes to only happen in identical twins.

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