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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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What Causes Numbness In Scrotum And Penis During A Bike Ride?

Hi, I recently went for a 4 day bike ride and by the end of the 3rd day I had developed numbness in my scrotum and penis. Not full numbness but enough to notice. It was on day 3 that I purchased a large cover for my bike seat. Previously I ride with a good narrow bike seat. It has been 3 weeks now and little change. I am pleased to say everything is in fine working order. Would appreciate your comments.
Wed, 12 Feb 2014
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Infectious Diseases Specialist,  's  Response
Hello,
Welcome to HCM,
This is a normal phenomenon, as you are on your bike for 4 days. During the ride there will be frequent rubbing of your genitals against the seat, as it is thickly innervated prolonged friction will irritates the skin covering that area.
It will not cause any problem, but it should be well aerated because increased temperature for longer period of time can lead to some sexual dysfunction.
Thats why we will advise the riders to wear loose under garments so that it should only support the genitals and not to cause other symptoms.
Thank you.
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What Causes Numbness In Scrotum And Penis During A Bike Ride?

Hello, Welcome to HCM, This is a normal phenomenon, as you are on your bike for 4 days. During the ride there will be frequent rubbing of your genitals against the seat, as it is thickly innervated prolonged friction will irritates the skin covering that area. It will not cause any problem, but it should be well aerated because increased temperature for longer period of time can lead to some sexual dysfunction. Thats why we will advise the riders to wear loose under garments so that it should only support the genitals and not to cause other symptoms. Thank you.