The fourth day after hemorrhoid surgery incision more pain is due to the use of intraoperative electric knife and other medical devices, a week after surgery incision is in the necrotic shedding period, this time incision pain is very normal and the most intense. Most doctors will inject long-acting painkillers after surgery, and it takes about a week for the effect of long-acting painkillers to wear off, so the pain on the fourth day after surgery may be due to the long-acting painkillers, because its effect is gradually disappearing, resulting in obvious pain. Usually pay attention to cleaning the incision after the stool, because the infected material will stimulate the incision surface and cause obvious pain, and you can take a warm water bath after the stool. If the pain is still intense, you can take oral painkillers to relieve the pain.