Daily meals are not much but the stomach is distended, and it is related to indigestion, chronic gastritis, gastric ulcer, chronic hepatitis and other factors. Patients who usually suffer from dyspepsia have too little secretion of digestive juices in the stomach, poor peristaltic function of the intestines and stomach, insufficient gastric power, difficulty in digesting the food eaten stays in the stomach for a long time, delayed gastric emptying food decaying and fermenting in the stomach causes a large amount of gas to gather so it produces the symptom of a very distended stomach. Patients with gastritis have various reasons for long-term inflammation of the mucosa of the stomach, abnormal digestive function, food stays in the stomach fermentation and flatulence. Patients with gastric ulcer have damage to the gastric mucosa and excessive secretion of gastric acid affects digestion leading to flatulence. Patients suffering from chronic hepatitis, because the liver function is impaired secretion of bile is insufficient to help the intestines digest and absorb fatty foods can also cause flatulence.