Diarrhea buttock pain that is, anal pain after diarrhea, on the basis of standardized treatment of diarrhea, the pain can be relieved by improving the diet, anal cleansing, medication application and other ways. When diarrhea symptoms occur, usually the frequency of defecation will also increase appropriately, frequent fecal stimulation as well as wiping and other actions, will cause perianal mucosal edema and damage, pain symptoms. On the one hand, it is recommended to fast for a short period of time or eat easy to digest, light food, to avoid spicy and irritating food to stimulate the local mucous membrane of the anus. After defecation, you can use water or potassium permanganate solution for local cleaning, to reduce local irritation symptoms at the same time can prevent infection and relieve pain. It should be noted that the anal pain need to be alert to anal fissure, hemorrhoids and other diseases, so it is recommended to go to the hospital, under the guidance of the doctor for targeted treatment. Drugs need to be used under the guidance of clinicians.