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Miller Place, NY
A 24-year-old male asked:

I had unprotected anal sex with someone. she was tested recently and found to be completely healthy. a day or two after sex, i felt mild irritation at the tip of my penis and the tip of the foreskin. what might i have since i too am std free?

1 doctor answer1 doctor weighed in
Dr. Robert Kwok
Pediatrics 33 years experience
Second thoughts: At risk for STI only if partner has the STI. Regardless of that, there are billions of bacteria coming down into the anal-rectal area all day long... such as E. coli, Klebsiella, and all sorts of other species. Scientists say there are more bacteria in the intestinal tract than there are human cells in our entire body (we are outnumbered). To stay safe, an anus should be reserved for just pooping.

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Last updated Nov 6, 2017

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