Constipation buttock pain generally refers to anal pain caused by constipation, mostly associated with hemorrhoids, anal fissure, rectal prolapse and other factors, it is recommended to take hemorrhoidal cream, lidocaine and other medication or internal sphincter lateral incision, rectal mucous membrane resection and other surgical treatments, in accordance with medical advice. 1. Hemorrhoids: when defecating, dry feces have to pass through the hemorrhoids, stimulating the hemorrhoids mucosa, so the stool will be constipated, pain. Can follow the doctor’s instructions for external drug treatment, such as hemorrhoid cream and hemorrhoid suppository treatment, if necessary, to take surgical treatment, such as hemorrhoidectomy and so on. 2. Anal fissure: if the feces is too dry, hard, coarse, leading to discharge difficulties, constipation, will cause anal fissure caused by pain during defecation. You can follow the doctor’s instructions to apply local lidocaine to relieve pain, oral lactulose to reduce constipation, but also through surgical treatment to relieve pain, such as internal sphincter amputation. 3. Rectal prolapse: the rectal mucosa or rectal wall in the constipation all out of the anus outside the mouth, will cause pulling-like pain and anal swelling pain. It is recommended to consult a doctor in time, take manipulation to reset, or take surgical treatment, such as rectal mucosal resection. In addition, severe constipation may also be caused by other diseases (such as endocrine-related diseases, diabetes mellitus), so it is recommended that such patients consult a doctor in a timely manner to clarify the cause of the disease, and then follow the doctor’s instructions to use medication.