Common gastrointestinal diseases are diarrhea, indigestion, gastritis, constipation, etc. If these are the case, usually pay attention to eat more light food, eat more vitamin-rich vegetables and fruits, remember not to eat cold and stimulating, spicy, bad for the gastrointestinal food. After the meal to carry out appropriate exercise to promote intestinal peristalsis and thus promote digestion, you can use the stomach and appetite tablets to help digestion, about two hours after the meal stomach pain, sometimes eating can be relieved with the phenomenon of acid reflux, may suffer from duodenal ulcer or duodenitis. If you have abdominal distension and pain, nausea, vomiting, vomiting blood, etc. after meals, and you are losing weight and have no appetite, and you can feel hard lumps on the umbilicus or heart, you should pay great attention to stomach cancer and go to hospital for timely examination and treatment.