A member asked:

Testicles rise during an erection. does this mean that the cremaster muscle activates at that time?

A doctor has provided 1 answer
Dr. James Lin answered

Here are some...: Testicles move up and down spontaneously all day long or at straining like during sex; that is normal. The degree & pace of its rise or fall reflects the tension and frequency of contraction and relaxation of cremasteric muscles at straining. So, there should be no healthy concern about it.

Answered 11/28/2015

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