The foreskin is the skin that covers the penis. It covers the head of the penis when a boy is young and usually retracts by age 4 or 5. However, if the foreskin does not retract by puberty, surgery may be necessary.

The foreskin is the skin that covers the penis from birth and usually retracts automatically by the age of 4 - 5. In some cases, when the child reaches puberty and the foreskin still does not retract, surgery may be needed to reconstruct the foreskin.