A member asked:

For a week i have this red- sometimes purple spot on the sulcus of my penis. no pain no itch, neither it gives me any discomfort. can it be an std?

A doctor has provided 1 answer
Dr. Robert Killian answered

Specializes in General Practice

STD: There is no std that causes a non-tender spot on the penis. Herpes is very painful. Chlamydia and gonorrhea do not cause skin changes that are visible. Syphilis is an ulcerated relatively large open sore that is not painful.

Answered 8/17/2013

4.9k views

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