I'm 15, circumcised . Apparently I masturbated a little too much because I got these 4 red patches on my penis shaft. They appeared right where my hand grips my penis so two under the thumb, one under the palm area and one where my index finger usually grips. I'm still a virgin so I guess STDs aren't too possible plus this appeared right after masturbation. Also, I seem to have irritade it with my soap when taking a bath and now they itch. Um, so yeah. That is all.