The skin of the male penis is the penile foreskin. In infants, the foreskin wraps around the entire head of the penis, and as it grows, usually in adolescence, the foreskin gradually expands and the head of the penis is exposed after the foreskin is turned up to the crown of the penis by itself. If the head of the adult penis is not erect state completely wrapped by the foreskin is the foreskin is too long. If the foreskin is too long and the tip is narrow, the foreskin can not be turned over completely is the prepuce. Overcircumcision is likely to accumulate more foreskin scale, which can cause foreskin penile head infection and warts or upstream urinary tract infection and penile cancer. Long-term inflammation can lead to narrowing of the external urethral opening. Circumcision can also cause infection to women during sexual intercourse and stimulate cervical lesions. Circumcision can also be a cause of premature ejaculation in men. So circumcision is best treated early, and the treatment is circumcision. At present, the traditional surgical method and circumcision ligation method are mainly used to remove the foreskin, the surgical method is mature and basically free of complications.