Boy show foreskin

Sometimes phimosis can cause the foreskin to balloon when weeing. This is called paraphimosis and is rare. Foreskin irritation and inflammation Foreskins can get caught in hastily pulled up zips. Once your son goes through puberty and he can easily pull back his foreskin, you should encourage him to do so for cleaning while in the bath or shower. Balanitis is an inflammation of the foreskin and penis, with swelling and redness. It does need to be treated urgently though. The foreskin might not fully separate from the glans until after puberty.