I've had this bump on my penis shaft for at least 10 years now. I've honestly forgotten. I'm 26 and never had sex. It's a rock hard painless mass under the skin, attached to the skin itself, not the inner workings of the shaft. So when I pull my skin away the bump goes with it. I can move it around quite a bit as well. The color of the bump itself is very light yellow. I don't have the balls (pun intended) to have this checked out, wondering if its something I can get rid of at home. Please help.