text: does masturbation cause bumbs?? hello i masterbate abot one a day and yesterday i noticed a red bump on the right side of my penis.  im not sure what it from and will it go away?? i had never had sex so i know its not an std??someone help me cause im really nervous and scared about my situation!! same thing happened to me a few years back, turns out my right hand was sleeping around on me while i was asleep.   i didn't understand it, i thought we had such a good relationship, sometimes, i'd even bring my girlfriends around, and we would have a threesome.   anyway, to make a long story short, my right hand gave me herpes, and i had to break up with him.  lefty treats me much better (from what i know, i'm gullable sometimes), and righty will never know what he could have had!!