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Alpharetta, GA
A 16-year-old male asked:

About my brown marks on my penis: they are dark but when i am erect, they get lighter. they don't hurt . mainly darker after masturbation. help?

2 doctor answers2 doctors weighed in
Dr. John Goldman
Rheumatology 56 years experience
Suspect vascular: This may be related to the blood flow in the skin of the penis and when you are erect the vessels on the top of the penis stretch and thus they are lighter. Your physician can clarify this.
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Dr. Milroy Samuel
Obstetrics and Gynecology 25 years experience
Hmm: Hyperpigmentation on various parts if body is normal. The reason it becomes lighter is that when you are erect the surface area increases of the penis resulting in the cluster of pigmentation being difffused if you will to a larger surface area. Best wishes.
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Jun 5, 2015

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