Foreskin
For a few boys, the foreskin does not separate on its own from the glans of the penis. In the few cases where a boy can't pull his foreskin all the way back by puberty, the boy should ask a doctor or nurse. Usually a doctor will correct the problem or give advice about how to gradually stretch the foreskin. The doctor may give a prescription for a steroid cream which will help to stretch the skin. Circumcision is another common option, especially in the United States.