If the stomach pain after eating and shitting is caused by eating greasy and other physiological reasons, pay attention to dietary improvement. If it is caused by enteritis and other diseases, you can take norfloxacin, bifidobacteria and other drugs for treatment, sterilization, regulation of intestinal flora. 1. Dietary improvements: eating fatty foods such as fat meat, or sweet potatoes and other coarse fiber foods, stimulate gastrointestinal peristalsis accelerate, stomach pain and diarrhea after eating. This situation is a physiological phenomenon, no special treatment, you can eat more soft rice and other light and easy to digest food, avoid spicy, greasy food and so on. To eat small meals, so as not to increase the gastrointestinal tract food residue, to promote defecation. 2. Medication: If there is gastroenteritis, irritable bowel syndrome and other diseases, there is inflammation stimulation or gastrointestinal tract peristalsis faster, the phenomenon will occur after eating to stimulate the gastrointestinal tract. You can take norfloxacin and ciprofloxacin to inhibit bacterial growth and relieve inflammatory stimulation. You can also take Bifidobacterium bifidum, Bacillus licheniformis, etc. to regulate the balance of intestinal flora and relieve gastrointestinal peristalsis. The phenomenon excludes eating and other physiological reasons, may also be other reasons, should promptly consult a doctor, under the guidance of the doctor for reasonable treatment, so as not to miss the best treatment period.