Stomach is always bloated with improper diet, indigestion, chronic gastritis, gastric ulcer, and duodenal ulcer is related. If you usually do not eat in moderation, eat too much at each meal, as well as eat a lot of food that is not easily digested and has gas production, these foods are difficult to digest, the feeling of fullness will be enhanced, and you will always feel bloated. Patients with indigestion have insufficient secretion of digestive juices, poor gastric power, and weakened peristaltic function, which affects food digestion and emptying after food intake into the stomach, and these foods have been fermenting in the stomach for a long time will cause flatulence. Patients with chronic gastritis, due to chronic inflammation of the stomach for a long time, will make the emptying of the stomach prolonged, after eating food constantly produce a certain pressure on the stomach wall, the gastric mucosa is damaged to a certain extent, the digestive function is weakened so that the food can not be digested in time, so always feel bloated situation. Patients with gastric ulcer and duodenal ulcer suffer from damage to the mucosa of the stomach and duodenum, which causes delayed emptying of food, and gas is produced in the fermentation of food, which increases the pressure in the stomach and causes flatulence.