well im wondering because i masturbate(alot,and i knowit's not good) and like a week or two ago i did it,im 13 btw, and that day i got these red bumps near my testicles,like right on my leg on the upper right calf or thigh in that middle area near my genitles and they itched alot and still do, i also remember trimming that day, so i know it aint exactly all about the question but im just worried like crazy, :(

You are clearly masturbating too much, kiddo.

You are more than likely chaffing, which is why your skin is irritated and itchy. Women get it a lot from shaving without a moisturizer or from being nicked when trimming.

And you touching yourself is making it worse.

Get some cortisone cream or some lotion to help the irritation go away (But please, dear lord, do not get excited about rubbing cream on yourself!)

To get a Sexually Transmitted Disease, the DISEASE has to TRANSIT from somewhere infected by the DISEASE usually in a SEXUAL way. Masturbating is somewhat sexual in nature, but is quite Asexual without the ability to reproduce by oneself.

No, it's not possible to contract HIV or any STD by masturbating.