When circumcision is performed for circumcision, there is a painful sensation when changing the medication after surgery. For adult patients, the pain is often better tolerated, or if there is no obvious foreskin adhesion in the circumcision, and there is no obvious oozing from the postoperative wound, the pain is often lighter when changing the medication. For pediatric patients with prepuce, or prepuce with obvious foreskin adhesions, intraoperative adhesion separation, postoperative with obvious oozing, the pain is often more obvious when changing the medication. In the early postoperative period, the pain is more pronounced, but as time goes by, the incision gradually heals and the traumatic exudation is gradually absorbed, and the painful sensation of changing the medication will gradually improve significantly.