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What Causes Black Patch Underneath Of Shaft Of Penis Extended Up To The Head Of Penis?

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Posted on Sat, 20 Sep 2014
Question: I am a white male 21 years old and had unprotected oral sex a week ago. Now I Began to notice an odd black patch of skin reaching from mid shaft up to where I urinate from on the bottom I my penis. It doesn't burn when I urinate just and odd slight pain that is on and off, along with funny feeling in my whole genital area what could this possibly be ??
doctor
Answered by Dr. Sankaranantham Murugan (34 minutes later)
Brief Answer:
Fixed drug reaction is a possibility.

Detailed Answer:
Hi,
Welcome to HCM.
Thanks for posting your query.

Black patch underneath of shaft of penis extended up to the head of penis could possibly because of a drug eruption if you had any history of drug intake. This could be settled once you stop the drug, the discoloration may remain for months.
Sometimes discoloration is possible in normal genital skin which might not had been noticed earlier.
If you feel that your problem would fit with this things, then you can upload the picture (with good clarity) of the lesion, then we may able to discuss further.
It would not be anything serious.
DR S.Murugan
Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
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Follow up: Dr. Sankaranantham Murugan (12 minutes later)
This is what i have noticed. I do not take any drugs but I am perscribed topamax for migranes.
doctor
Answered by Dr. Sankaranantham Murugan (5 hours later)
Brief Answer:
Not seems to be a pathological lesion.

Detailed Answer:
Hi,
Welcome back.

I saw the picture sent by you.
It does not fit with Fixed drug eruption. I am able to see few brownish (Not exactly blackish) discoloration of the inner aspect of foreskin. It is neither due to any STD or HIV. It is almost a normal discoloration which you can ignore. If you have any discomfort with this discoloration, consult a Dermato-Venereologist for further help. Direct inspection of the lesion may throw more lights on the same.
Dr S.Murugan
Note: Hope the answers resolves your concerns, however for further guidance of skin related queries consult our Dermatologist.Click here to book a consultation

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
Answered by
Dr.
Dr. Sankaranantham Murugan

HIV AIDS Specialist

Practicing since :1974

Answered : 3110 Questions

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What Causes Black Patch Underneath Of Shaft Of Penis Extended Up To The Head Of Penis?

Brief Answer: Fixed drug reaction is a possibility. Detailed Answer: Hi, Welcome to HCM. Thanks for posting your query. Black patch underneath of shaft of penis extended up to the head of penis could possibly because of a drug eruption if you had any history of drug intake. This could be settled once you stop the drug, the discoloration may remain for months. Sometimes discoloration is possible in normal genital skin which might not had been noticed earlier. If you feel that your problem would fit with this things, then you can upload the picture (with good clarity) of the lesion, then we may able to discuss further. It would not be anything serious. DR S.Murugan