I am 21 years old and have a problem with my foreskin. I can retract it when my penis is not erect, when I get fully erect, my foreskin can go about litle more than half way. I try to slide it back but it is very tight.
what do i need to do ? (when fully erect pull back the foreskin so far i can and hold there for some time en do that over and over or is that a bad idea )