Contact Us

‘Can Long Bike Rides Damage My Junk?’ — Ask Dr. Harry Fisch


I like to take long bike rides, but often my unit gets numb after a long ride.  Am I doing some kind of permanent damage? — Barry, Wichita Falls

You’re experiencing what bikers call “sleepy peeny.”

Basically you are compressing the main nerve to the penis, which lies fairly close to the skin under the perineum—the area between a man’s scrotum and his anus.  Many bicycle seats, combined with a forward-leaning riding position, put a lot of pressure on this nerve—and the damage can be long-lasting.

Consider buying a bicycle seat that has a groove or cut-out area down the center to reduce pressure on the nerves and arteries feeding the penis.  You could also experiment with a different handlebar height or configuration to put your body in a more upright position, which will put your weight more on your “sit” bones and less on your perineum.

Dr. Harry Fisch is a board certified urologist at New York Presbyterian Hospital/Weill Medical College of Cornell University. Each week, he’ll answer reader questions in an effort to get guys to ‘man up about health.’

NEXT: 'Why Is My Sexual Mustard Pink?

Recommended for You

Around the Web

Best of GuySpeed

Leave a Comment

It appears that you already have an account created within our VIP network of sites on . To keep your personal information safe, we need to verify that it's really you. To activate your account, please confirm your password. When you have confirmed your password, you will be able to log in through Facebook on both sites.

Forgot your password?

It appears that you already have an account on this site associated with . To connect your existing account just click on the account activation button below. You will maintain your existing VIP profile. After you do this, you will be able to always log in to using your original account information.

Please fill out the information below to help us provide you a better experience.

(Forgot your password?)

Not a member? Sign up here

Sign up for GuySpeed quickly by connecting your Facebook account. It's just as secure and no password to remember!