Worried young man alone

Can wearing really tight underwear make your penis smaller? I feel like that’s happening to me.


  • Michael Castleman says:

    No, tight underwear has absolutely no effect on penis size. Wearing gloves doesn’t limit finger size, and tight underwear doesn’t impact penis size.

    However, compared with boxer shorts, tight underwear holds the testicles closer to the body, which heats them, and may reduce sperm count. So if you’re trying to conceive and having difficultly, switch to boxers until she’s pregnant.

    For more on penis size—including safe, effective, inexpensive ways to be all you can be—I suggest the Penis Size chapter in my recent book, Sizzling Sex for Life.

    I wish you sizzling sex for life!

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