Erection after circumcision is a normal physiological phenomenon and does not require the use of drugs to suppress erection. It is only after the erection there will be local wound pain, you can take oral painkillers to relieve the pain. Sometimes erection can also cause local wound rupture and bleeding performance, with the gradual recovery from surgery, the pain and its rupture and bleeding situation can gradually reduce or completely disappear. If the pain is severe after surgery, patients can take oral diclofenac sodium capsules or fenbid extended-release capsules to relieve the pain, which can gradually reduce or disappear after 72 hours. 72 hours later, even if the penis has an erection, there is no significant pain. The patient only needs to go to the hospital regularly for a change of medication to check that the wound is healing well, there is no breakage, bleeding, no signs of local cracking, infection, give routine changes of medication can be, but excessive erection leads to local cracking and bleeding, timely hospital treatment, if necessary, need to debridement or stitching treatment.