The buttocks pain when defecating is often caused by the following reasons, the specific treatment methods are as follows: 1, hemorrhoids: when suffering from hemorrhoids can appear to have pain when defecating, you need to go to the hospital’s general surgery, or anorectal surgery for clarification, need to do anal finger diagnosis, and anoscopy. If the disease, you can first give conservative treatment, such as try not to drink alcohol, do not eat spicy food, can be appropriate intake of fresh fruit and green vegetables, and can be combined with drug sitz bath treatment, sitz bath solution is generally used diluted warm potassium permanganate water, or Chinese medicine preparations. If the effect of conservative treatment is poor, it is necessary to perform surgical treatment. 2, anal fissure: small ulcers can be found in the anus, which can be treated conservatively in the acute stage, but if it becomes chronic, it is necessary to perform surgical treatment. 3, perianal abscess: if the disease is the disease, it is necessary to give anti-inflammatory treatment and surgical treatment.