A member asked:

What amount does the vagina opening (not cervix) stretch during birth ?

A doctor has provided 1 answer
Dr. David Krulak answered

Specializes in Family Medicine

As needed: The vaginal opening stretches to an adequate size to pass the baby's head and shoulders. This is approximately 10 cm. However, if there is not enough stretch in the walls during the baby's passage, the vagina can tear or an episiotomy given in order to allow the birth.

Answered 8/22/2018

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