ABout a year ago I first noticed that I had small red bumps under my foreskin when I retracted it, along the ridge of the head, and a few dots on the head itself. I found it to be somewhat itchy (and was actually more itchy when i was thinking about it). It went away in a couple of days, but happened again to a small extent during the winter. That also went away on its own in a few days and here I am again with the same thing. It was a little bit sore and it seems to be mainly in one area, but also a few red dots around the other side of the ridge. It doesn't itch or anything and if it wasn't for seeing it, I wouldn't even know it was there. Could this be due to masterbation? sexual intercourse? humidity? urine? Should it be something I should worry about even though it goes away after a few days?Also I'm not sure if this would make any difference or not, but about 2 weeks ago I had standard blood tests and urinalysis done for a checkup and everything was A OK.Thanks