There are two types of glans rings commonly used in the clinic, one is the circumcision blocking ring, and the other is the commercial ring or the Korean ring.1, the circumcision blocking ring is a temporary relief of the role of the foreskin, and can not fundamentally solve the problem of circumcision. Circumcision ring can be used for the elderly or infants, as well as patients who are afraid of circumcision surgery, it is only a temporary solution to the problem of circumcision; 2, the commercial ring or the Korean ring, mainly for circumcision surgery, the operation can be carried out under local anesthesia, the inner and outer plate of the foreskin and the commercial ring of the inner and outer ring between the card and then remove the excessive foreskin. Surgery is less traumatic, almost no bleeding, 1-2 weeks after the operation can be removed from the commercial ring, after the removal of the foreskin edema is lighter, less traumatic than conventional circumcision surgery, faster recovery.