Long bowel coming out during the day after stoma may be caused by postoperative bowel prolapse, large stoma fistula, parastomal hernia, etc. It is recommended to have further examination to clarify the cause. 1. Postoperative intestinal prolapse: due to the irritation of the intestinal tract during surgery, resulting in intestinal prolapse and active state during the day, there will be a situation that the large intestine comes out very long during the day after the stoma. 2. Larger stoma fistula: the stoma opening caused by the surgery is larger. The patient is in a standing position during the day, leading to an increase in abdominal pressure, which causes the large intestine to come out very long during the day after the stoma. 3. Parastomal hernia: due to the weak or defective tissues around the stoma, once the patient exerts himself during the day, it is easy to cause the tissues in the abdominal cavity to come out, and the symptom of the colon coming out for a long time in the daytime after the stoma occurs. If the large intestine comes out very long during the day after stoma, the patient should inform the doctor in time, stuff the large intestine into the body with the help of the doctor, maintain the normal function, monitor the changes of the condition, and give treatment at any time.