The foreskin is a layer of ring-shaped tissue covering the front of the penis, and there is a physiological natural adhesion between the foreskin and the head of the penis in newborns, which becomes congenital prepuce. 3-4 years after birth, the penis grows, and with intermittent penile erection, the foreskin and the head of the penis gradually separate. 90% of children’s foreskin can be retracted and turned up by the age of 3. In addition, the warm and humid environment is conducive to the survival and reproduction of various microorganisms (including bacteria and viruses). The chronic stimulation of foreskin scale and recurrent episodes of prepuce penile head infection are important predisposing factors for penile cancer. Epidemiological studies have shown that the incidence of penile cancer in Israel, a Muslim country and a Jewish country where circumcision is widely performed, is tens of times lower than that in uncircumcised areas. Circumcision is also the surgical removal of the covering foreskin to expose the head of the penis. For the health and well-being of the child, circumcision is generally required in the following cases. (1) Fibrosis of the foreskin opening, loss of elasticity, and inability to turn up the foreskin. (2) Recurrent episodes of prepuce penile head infection. (3)Foreskin opening is still narrow after 3 years old and foreskin cannot be turned up. (4) Severe adhesion between foreskin and penile head, which cannot be separated by manipulation. (5) The narrowing of the external urethral opening caused by circumcision, which affects urination. The following cases are considered as contraindications for circumcision: (1) Inflammatory period of foreskin penile head. (2)occult penis. (3) Suburethral cleft. Our hospital introduces the concept of plastic and cosmetic circumcision into circumcision surgery, with neat post-operative margins, beautiful appearance, no stitch removal, and little pain.