For the last month I have noticed this little bump on the front side of my scrotum. Its not painful and completely un-noticeable unless I touch it, it is slightly sensitive to the touch. It hurts a lot if I try to pick at it. It looks like a small wart of some kind, less than 1/8th of an inch total diameter. It is noticably more red than the rest of the skin, and it has a little black dot on the tip of it. I have not had sex for about 6 months and although I have no clue how long its been there, I just noticed it about a month ago. Any ideas?