Hi, i am an uncircumcised male, 17, and have had this problem for what must be at least a year now. I have a few marks
on various areas
on my forsekin, which are light greyish/brown in colour. They are spread around a bit on the foreskin surface - a couple of light blemishes on the top side, but more worryingly a group of three around the right, on the underside of the glans, which feel ever so slightly raised as i run my finger across them.
I am an extremely frequent masturbater (sorry!