Kinsey Confidential: Sexual Health Information from the Kinsey Institute

• Q&A: Concerns About My Uncircumcised Penis

  

  Although most men have retractable foreskins by the time they are 18 years old, some men have conditions that keep the foreskin from retracting.

• Q&A: I Don’t Produce Semen When I Climax.

  

  Retrograde ejaculation is not harmful in and of itself. If sperm enter the bladder, they will come out the next time the man urinates.

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