Is it normal to have visable veins on your penis? This is only when I have an erection, not in it's normal form. And would it have anything to do with masturbation, or is it just heritatory?
In order for the penis to get erect blood must flow into it, so veins are needed for this. In some guys they are more visible than in other guys, depending on how the skin is stretched, on how hard the penis ism, on any number of things.
I wouldnt have thought there would be much you can do about it if you dont like it either.