Butt odor, may be due to bad habits, anal fistula, rectal prolapse and other diseases, according to the different causes of the corresponding treatment. 1. Bad habits: not paying attention to hygiene in daily life, do not often take a bath, will cause the buttocks to smell. In daily life should maintain personal hygiene, diligent bathing, diligent washing of the anal area, in the stool to wipe the buttocks clean, if necessary, stool cleaning anus. 2. anal fistula: anal fistula pus outflow, will also lead to anal local odor. Fistula patients in daily life to avoid spicy stimulating food, need to be treated by way of surgery, the general line anal fistula hanging line surgery treatment. 3. Rectal prolapse: rectal prolapse can cause feces and mucus leakage, causing local odor in the buttocks. Patients should avoid constipation in daily life, keep the bowel movement. Patients with severe symptoms can be treated by injecting sclerosing agents around the rectum or surgically removing the prolapsed rectum. Hemorrhoids, anal tumors and other diseases can also trigger the situation of smelly buttocks, patients should consult a doctor in time to identify the cause of treatment.