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Types of twins and triplets

These diagrams illustrate how the different kinds of twinning can look on an early ultrasound.

Dichorionic/Diamniotic (di/di) twins:

Monochorionic/Diamniotic (mo/di) twins:
mo/di twins

Monochorionic/Monoamniotic (mo/mo) twins:
mo/mo twins

Trichorionic/Triamniotic (tri/tri) triplets:
tri/tri triplets

Dichorionic/Triamniotic (di/tri) triplets:
di/tri triplets

Monochorionic/Triamniotic (mo/tri) triplets:
mo/tri triplets

10 responses to “Types of twins and triplets”

  1. brittney Avatar
    brittney

    I am a identical triplet and we are 16 years old

  2. […] the ultrasound we found out that the kind of twins we had were mono/di and required pretty close monitoring. I had to get blood draws every two weeks to check hormone […]

  3. Patricia Avatar
    Patricia

    Hi pam,

    I’am from the Netherlands and I have di/tri 3. Years old. They born on 4 December 2012! You’re boys to!
    I like you’re story and i’am a follower from the other side of the world.

    Patricia

    1. Pam Kocke Avatar

      Thanks Patricia! I love that we both have Dec 4 boys!

  4. senthilkumar Avatar
    senthilkumar

    we had mono chorionic and mono amniotic triplets. now they are 9 years’ old. all of them are girls.

  5. Betsy Dominguez Avatar

    Hi — great blog! I’m 3 months with mono/di twins and my OB said I should look for multiples-blogs and I came across yours. Your boys are so sweet!

    1. Pam Kocke Avatar

      Congratulations!

  6. Britni Church Avatar
    Britni Church

    We found out 1wk ago at 17weeks that we’re having triplet boys! I have my anatomy scan Tomorrow so I am hoping to know more then. I think they all have their own placentas and sacs.

    1. Pam Kocke Avatar

      Congratulations! I hope you do find out they have their own placentas, that will be less worry for you. 🙂 BBB is the best!

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