The painful bowel movement is mainly due to the following reasons: 1. poor diet, overeating, or the intake of large amounts of spicy and other irritating foods can have a negative impact on bowel movements, causing painful bowel movements. 2. inflammation in the intestines, including colitis and proctitis, which can cause certain difficulties in bowel movements. 3. The mucosa or tissues that have been lesioned can also be stimulated by feces and cause pain during defecation. 3, intestinal spasm, rather than saying that intestinal spasm is a lesion, it is a congenital habit. Especially when defecating, long to the phenomenon of spasm or contraction, thus causing painful symptoms. 4, irritable bowel syndrome, this disease, although there is no obvious organic lesions, but easily affected by mental factors, and indigestion and pain in the stomach when defecating phenomenon.