I have recently discovered a few small, hard, white bumps
on the outside of my anus. The bumps are painless and I can't tell they are there until I shower. I pulled one off, thinking it was a pimple, and it caused bleeding --naturally. The bump was relatively "clear" and didn't contain any puss or the like. I am an 18 yr old gay male and have only been with 1 person. I have recently been tested and am negative for HIV, herpes, syphilis, and a couple others I cant remember.