Stool 3 times a day after meals may be caused by dietary factors, irritable bowel syndrome, gastrointestinal dysfunction and so on. 1. Dietary factors: may be due to the intake of dietary fiber food more, such as eating a lot of green vegetables, will lead to gastrointestinal tract peristalsis faster, the number of stools increased. 2. Irritable Bowel Syndrome (IBS): It may be caused by overeating, cold and flu, or it may be caused by prolonged mental anxiety and tension, etc. The patient’s gastrointestinal tract is dysfunctional, and there is intestinal hyperfunction, and he or she may have a bowel movement just after eating. 3. Gastrointestinal dysfunction: the patient’s gastrointestinal dysfunction, abnormal peristalsis of the intestinal tract leads to an increase in the number of stools, stools after meals. After meals on the stool 3 times a day should be timely to the hospital to identify the cause of targeted treatment.