Twins 101: Types of Twins

Dichorionic, diamniotic, monochorionic, monoamniotic — wondering what it all means? We've broken it down.
profile picture of Excerpted from The Baby Bump, Twins and Triplets Edition
ByExcerpted from The Baby Bump, Twins and Triplets Edition
Updated
Mar 2017
Hero Image
Photo: Megan Rojas / The Bump
3 slides
1
Photo: Megan Rojas / The Bump

Dichorionic Diamniotic

Fraternal or identical twins who have their own placenta and amniotic sac.

2
Photo: Megan Rojas / The Bump

Monochorionic Diamniotic

Identical twins who share the same placenta but have different amniotic sacs.

3
Photo: Megan Rojas / The Bump

Monochorionic Monoamniotic

Identical twins who share the same placenta and amniotic sac.

Related Video

Woman Gives Birth to Twins—3 Months Apart

Ashley Edwards Walker
Contributing Writer
Published
08/27/2019

Eating While Pregnant With Twins?

Excerpted from The Baby Bump, Twins and Triplets Edition

Telling Twins Apart in Utero?

Excerpted from The Baby Bump, Twins and Triplets Edition

Biophysical Profile for Multiples?

Excerpted from The Baby Bump, Twins and Triplets Edition

Q&A: Can Twins Kick Each Other?

Karen Moise, RN
Registered Nurse

Miscarriage Risk With Twins?

Excerpted from The Baby Bump, Twins and Triplets Edition
Advertisement