The post-operative filling of sterile gauze for hemorrhoids is mainly to play the role of pressure to stop bleeding. After hemorrhoid surgery the anal area incision is open, this place can not be directly sutured, because every day to pass through the stool, it is difficult to thoroughly sterilize, if directly sutured, it is easy to lead to infection, directly open the trauma, every day to change the medicine, drainage is not easy to lead to infection. However, there is a risk of bleeding from the open wound. After doing hemorrhoid surgery, the anal canal is filled with sterile gauze, which can be removed the next morning and the patient can defecate normally. If the patient has a strong urge to defecate, it can also be removed the same day, however, clean and disinfect the area after defecation, and then continue to wrap it with gauze to prevent acute bleeding after surgery.