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shiny red bump on penis

the other day i noticed a red/purple bump on the shaft of my penis about a half a cenitimeter wide. it is painless, shiny, and its clearly on top of the skin like a pimple or something. i havent had sex in over a year so im assuming its not an STD but who knows. ive never had unprotected sex but i have had oral sex several times but not in the past 2 years. anyone have any idea what the hell this is?
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563773 tn?1374246539
MEDICAL PROFESSIONAL
Hello,
I cannot confirm anything without examination but it can be lichen planus. Lichen planus is an inflammatory disease that affects the skin and the oral mucosa, and presents itself in the form of papules(flat spots) or rashes. Treatment is available only on prescription and consists mainly of steroids, retinoids, hydroquinone and phototherapy.

My sincere advice is to consult a dermatologist and get the diagnosis confirmed. It is very difficult to precisely confirm a diagnosis without examination and investigations and the answer is based on the medical information provided. For exact diagnosis, you are requested to consult your dermatologist. I sincerely hope that helps. Take care and please do keep me posted on how you are doing.

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Avatar universal
actually upon further inspection it does hurt slightly if i poke at it or squeeze it and when i squeeze it the top of the bump becomes dark red
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