Having bowel movements even after having a bowel movement may be caused by physiological reasons such as consuming too many chili peppers, or it may be caused by pathological reasons such as ulcerative colitis and rectal tumors. 1. Physiological reasons: overeating or consuming too much chili, pepper, onion, barbecue, ginger, onion, coffee, strong tea, alcohol, ice cream and other spicy and stimulating, cold and greasy foods can stimulate the gastrointestinal mucosa, causing abdominal pain, bloating, diarrhea, nausea, vomiting, loss of appetite and other symptoms, and there is still a bowel movement after a bowel movement. 2. Pathologic causes: (1) Ulcerative colitis: immunity, heredity, infection and other factors can cause ulcerative changes in part or all of the large intestine, and when it involves the rectum, it can stimulate the nerves of the rectal mucosa and cause the urge to have a bowel movement. It can also be accompanied by diarrhea, abdominal pain, fever and other symptoms. (2) Rectal tumor: it can be divided into benign rectal tumor and malignant tumor. Tumor tissues can compress the nerves in the rectum and trigger defecation reflex, which will lead to the symptom of having diarrhea even after bowel movement, and also cause diarrhea, abdominal pain, blood in stool and other manifestations. After the bowel movement may also be caused by hemorrhoids and other diseases, it is recommended to consult a doctor to clarify the diagnosis, under the guidance of the doctor for targeted treatment.