Many patients think that they should be absolutely forbidden to defecate after anal surgery, or at least not for a few days, and some other patients think that although they cannot be “suffocated” by the stool, they worry that defecation will affect the healing of the wound, so they try to make the stool as loose as water, and some patients are in a hurry every time they defecate, and they dare not continue when some stool is discharged. I do not dare to continue, resulting in the stool is not exhausted, always feel that not finished even can affect urination. In fact, these practices will only aggravate their own pain. Because of anal surgery, fasting is generally not required, except for anesthesia requirements. In general, anal surgery is an open wound, and the advantage of an open wound is that it can be drained freely, so that stool residue does not accumulate on the wound when defecating. So is it necessary to make the stool as loose as water? The answer is no. Too loose stool will make the normal defecation process can not be completed, because the normal defecation is the anal canal feel the volume and weight of the stool, the anal canal external dilator muscle relaxation to open the anus, while the internal sphincter descends, such a process will make the end of the rectum mucosa, anal canal skin protrusion, then the anal wound is completely open outside, stool can not pass through the wound two discharge, but if the stool is too loose, this process will However, if the stool is too thin, this process cannot be completed, and the alkaline stool will directly stimulate the wound and cause pain. Some patients sit in the toilet or potty to defecate, and if the space of the potty is small, the actual defecation is pinching the buttocks, so the sphincter can not be completely relaxed, so the pain will be aggravated when defecating. Painful defecation will cause incomplete defecation, the lower rectal feces stay too much, too long will cause water absorption in the feces caused by hard stool. Therefore, there are several points to note: 1, if there is no difficulty in defecation before the operation, do not use stimulating drugs such as rhubarb, but should be enemas to make the stool pass. 2, appropriate oral medication to promote defecation so that there is a daily bowel movement. The key point is that after surgery, you should also maintain the most consistent with their normal bowel habits and ways, do not destroy the normal process of defecation, only in this way to minimize the pain.