A member asked:

Can vagina n labia/lips open/expand by exhaling, n contract by inhaling during heavy breathing, n is it voluntary/involuntary pelvic muscles movement ?

A doctor has provided 1 answer

Voluntary: The muscles of the pelvic floor (the ones around the vagina, in the labia, etc) are skeletal muscles or "voluntary." you can learn to contract and expand them well. Kegel exercises are a widely accepted way of improving your use of these muscles.

Answered 10/8/2013

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