After circumcision, the pain from the trauma caused by the surgery itself is most severe within 24 hours, gradually relieved after 24 hours, and almost all of it disappears or is completely relieved after 72 hours, so there is almost no pain when walking after 72 hours. However, if there is local friction or collision during walking, pain will still occur, but this pain is not caused by the surgery itself, but by local wound irritation due to friction or collision. After 72 hours, the external genitalia should be fixed properly to prevent excessive rubbing, so you should not engage in strenuous activities, running, jumping, etc. to prevent the pain caused by excessive rubbing or collision. However, the wound should not be exposed to water, urine should not contaminate the wound, and strenuous sports should not be engaged in.