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What does it mean if twins are dichorionic-diamniotic?

3 doctors weighed in
Dr. Diane Minich
Family Medicine
1 doctor agrees

In brief: See below

A dichorionic diamniotic (dcda) twin pregnancy is a type of twin pregnancy where each twin has its own chorionic and amnionic sacs.

In brief: See below

A dichorionic diamniotic (dcda) twin pregnancy is a type of twin pregnancy where each twin has its own chorionic and amnionic sacs.
Dr. Diane Minich
Dr. Diane Minich
Thank
Dr. Craig Keathley
Obstetrics & Gynecology

In brief: Separate sacs

The amniotic sac is actually made of 2 fused membrane layers, the chorion and amnion.
Dichorionic diamniotic twins each have a separate placenta with their own two layer sac. Fraternal twins are almost always dichorionic diamniotic because they develop from separate eggs. Identical twins can be dichorionic diamniotic if the fertilized egg splits very early after fertilization.

In brief: Separate sacs

The amniotic sac is actually made of 2 fused membrane layers, the chorion and amnion.
Dichorionic diamniotic twins each have a separate placenta with their own two layer sac. Fraternal twins are almost always dichorionic diamniotic because they develop from separate eggs. Identical twins can be dichorionic diamniotic if the fertilized egg splits very early after fertilization.
Dr. Craig Keathley
Dr. Craig Keathley
Thank
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