Hi people
I have this dark skin trail from the scrotum all the way to the bottom of my penis head. I've been masturbating about three times a week for three years now. I dont know whats going on with my penis. And on top of that, i have these weird bumps that line with the trail, they're small and dont hurt but when i have an erection they are hard and obvious....WHAT SHOULD I DO? WHAT IS THE SKIN TRAIL AND WHAT ARE THESE BUMPS???