Bumps?

Patient: Hey im a 17 male. I have a big issue its concerning my penis. I recently seen a scab like thing on the top of my penis not by the urine hoe top of it. In also i spotted bumps around the edges of my penis im worried i have no clue what it could be. Im not sexual active so its not a STD im jut worried it could be serious. HELP PLEASE? Any ideas what it could be i will email the image if you need one. Oh yeah could it be from masturbation?

Doctor: