2 days ago I masturbated for hours, after I finish I saw a good amount of foreskin accumulated in the penis head. At first it gave me problem to retract the foreskin, but after masturbating again it loosed out and it stop giving me trouble.

I haven't had any pain, it's only the foreskin that has me intrigue. From today I'm gonna leave it alone to see if it goes down, if not I am planning to see my urologist, although it doesn't look serious.