I... think I have a pimple on my dick? I've never had sex with anyone so it def ain't an STD lmao it's on the shaft as well not balls so not cancer either. It's real small and just popped up last night. With how sweaty i've been down there at work multiple times a week, I wouldn't be surprised if I got acne like that down there. I've already had to pop a bunch of pimples on my face recently.