When circumcision is performed on a circumcised patient, the anesthetic will produce pain, which is a normal performance. If local anesthesia is used, the anesthetic needs to be injected into the skin at the root of the penis, and a syringe needs to be used to puncture the skin at the root of the penis for injection, at this time the anesthetic does not take effect, so the patient will feel pain. The pain will not occur during the procedure. After the surgery, the effect of anesthesia may last for some time and gradually dissipate, so after waiting for some time after the surgery, the patient will also gradually experience pain, which is in line with the characteristics of anesthetic metabolism. However, if general anesthesia is used for surgery, the patient will not feel any pain because general anesthesia is anesthesia in which the patient inhales a certain amount of anesthetic drugs to produce a feeling of anesthesia, so there will be no pain like a needle injection. If local anesthesia is used, pain will be produced during the local anesthesia.