What is this small bump on penis veins?
I notice a very small bump like clog near my penis vein, if you follow the line near the end of the vein the bump is there. I masturbate rather rough without lubrication, sometimes I hurt my penis in the progress. I don't feel any bump when is non-erection only when is erection and is hardly noticeable until look closely. I am sexual active but always use protection condoms, the last time was a month ago to be exact. I don't think is STD but are bumps on veins common?