I posted a while ago about having a small "oil-gland" thing on the shaft of my penis. It was bigger than any normal oil gland... but it wasn't like a wart or anything... it looked somewhat like a pimple. Well I popped it and the yellow stuff came out like a pimple. Now there's like this scar kind of thing on my penis... my question is... are any genital STDs popable? please help