After the bowel movement in the morning, the stomach is easy, but in the afternoon, the bowel movement is strong, but it can’t be discharged, which belongs to the symptom of heavy weight after the urgency, and the cause of which is many, commonly found in the irritable bowel syndrome, chronic colitis, and so on. 1. Irritable bowel syndrome: a dysfunctional syndrome, often with abdominal pain, can be accompanied by bowel habits such as frequency, shape and other changes, often accompanied by a sense of urgency and heaviness. 2. Chronic colitis: the typical symptoms are abdominal pain, diarrhea, or alternating diarrhea and constipation, accompanied by a sense of urgency and heaviness. The above situation may have other causes, such as proctitis, etc. It is recommended to go to the hospital as soon as possible, under the guidance of a professional physician to determine the cause of the disease, and standardized treatment.