Abdominal pain after meals, diarrhea, and pain after bowel movements can be caused by a variety of factors, with different causes and different treatments. Generally, it can be relieved by dietary modification, anti-infection or other medications. 1. Dietary regulation: the above symptoms can be caused by eating spicy and stimulating foods, cold foods, or foods contaminated by bacteria, at this time, we need to pay attention to dietary hygiene, and develop the habit of eating light and regular diet. 2. Anti-infection treatment: if the patient is caused by bacterial infection resulting in acute gastroenteritis, can be manifested as abdominal pain, diarrhea, pain relief symptoms after stool, can follow the doctor’s instructions for anti-infection treatment, commonly used drugs such as norfloxacin. 3. Other drug therapy: irritable bowel syndrome can also appear the above symptoms, can be prescribed antispasmodics such as anticholinergics to relieve abdominal pain and loperamide or diphenoxylate and other drugs to stop diarrhea. It is recommended that when the above situation occurs, patients should consult a doctor in a timely manner to clarify the cause of the disease, and under the guidance of a professional physician for treatment.