Abdominal pain after the stool is not painful may be true, seen in overeating, work stress and other intestinal dysfunction, but also seen in inflammatory bowel disease, intestinal tuberculosis and other diseases. 1. Physiological reasons: such as overeating, nervousness, work stress, etc. lead to intestinal dysfunction, food can not be well digested, absorbed, too much food in the intestinal tract leads to intestinal lumen pressure caused by high abdominal pain, defecation after the abdominal cavity pressure decreases, abdominal pain improves. 2. Inflammatory bowel disease: an autoimmune disease, common ulcerative colitis, Crohn’s disease, intestinal mucosal erosion, ulcer formation, abdominal pain, mucous pus and blood stools, acute and post-traumatic stress (discomfort in the lower abdomen, want to defecate very much, and a sense of incomplete defecation after defecation) performance, generally after defecation to reduce the feces on the ulcer surface of the stimulation of the abdominal pain can be improved. 3. Intestinal tuberculosis: tuberculosis bacillus caused by intestinal special infections, there can be abdominal pain, generally aggravated after meals, defecation or defecation, may be related to gastrointestinal reflexes caused by meals or intestinal contents through the inflammatory narrow intestinal segments, causing local intestinal spasm or aggravation of intestinal obstruction, resulting in aggravation of the meal, defecation after the improvement of the situation abdominal pain is also better. If there is abdominal pain after bowel movement, you should go to the hospital to find out the cause, according to the cause of the treatment.