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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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Could Small Blisters With Black Shading Around Penis Mean STD?

Hi, I need help with something. Although I haven't seen it for myself, my boyfriend tells me that he is afraid he might have an STD or something. He doesn't have health insurance or money right now so it's hard to just go get tested. He said after he had sex with his last partner small blisters appeared for a little bit then disappeared. Now, there is just a black shading around a little bit of his penis. I am very worried because we plan to conceive in May 2011 & make it our first time together having sex. Does anyone have any idea what this could be? We are both very worried.
Mon, 29 Dec 2014
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Dermatologist 's  Response
Hello. Thank you for writing to us at healthcaremagic

I will keep a possibility of genital herpes, as the reason for blisters and the resulting hyperpigmentation/dark shades.
Genital herpes, classically presents as grouped, discrete, vesicles which soon rupture to form erosions. The erosions may be painful Or have a burning sensation over them.
The hyperpigmentation/black shading is most likely due to post-inflammatory hyperpigmentation (PIH), which is a non-specific reaction to any inflammatory insult to the skin.
Genital herpes is usually transmitted by direct/intimate contact with an infected sexual partner.
The infection can also be transmitted even when the infection is clinically silent as low grade multiplication of the virus goes on inside the body and therefore the virus is shed from time to time from infected genital surfaces, although in small numbers as compared to when there are active herpetic sores.
The sores of herpes are fairly characteristic to be diagnosed visually. However, in the absence of sores a blood test for herpes e.g Hsv ELISA for type I and type 2 virus, would be helpful in either confirming or ruling out genital herpes.

Regards
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Could Small Blisters With Black Shading Around Penis Mean STD?

Hello. Thank you for writing to us at healthcaremagic I will keep a possibility of genital herpes, as the reason for blisters and the resulting hyperpigmentation/dark shades. Genital herpes, classically presents as grouped, discrete, vesicles which soon rupture to form erosions. The erosions may be painful Or have a burning sensation over them. The hyperpigmentation/black shading is most likely due to post-inflammatory hyperpigmentation (PIH), which is a non-specific reaction to any inflammatory insult to the skin. Genital herpes is usually transmitted by direct/intimate contact with an infected sexual partner. The infection can also be transmitted even when the infection is clinically silent as low grade multiplication of the virus goes on inside the body and therefore the virus is shed from time to time from infected genital surfaces, although in small numbers as compared to when there are active herpetic sores. The sores of herpes are fairly characteristic to be diagnosed visually. However, in the absence of sores a blood test for herpes e.g Hsv ELISA for type I and type 2 virus, would be helpful in either confirming or ruling out genital herpes. Regards