Hi, so my issue is this. As of recently I ve had sexual interaction with a woman who only after our last instance revealed to me that she had injected drugs in the past. Now I have always used a condom, for fellatio and the one instance of intercourse (which only lasted maybe a minute or so due to the fact that I was uncomfortable with the situation, I did not ejaculate). Regardless I had noticed after that the condom had broke. Anyways after a day or two I noticed a bump on the bottom part of the shaft of my penis . It wasn t big and only hurt alittle if I squeezed it. Some background I do trim my pubic hair but have not in a month or so. Now I am worried that I may have contracted something. There is no burning when urinating, no other bumps, no fever , no nothing. But this purplish bump. After doing some research the only other thing I can think of is a ingrown hair , which after a closer look there does appear to be a few hairs coming from the bump. There appears to be a hair going back into the skin but I cannot really tell. Any help would be grately appreciated.