Some of the causes of gastritis stomach bloating are improper diet, indigestion, and overproduction of stomach acid. You can choose to improve your diet and take medication. 1. Improper diet: patients with gastritis have weaker digestive ability, and should consume more easily digested food that does not easily produce gas, such as tofu, spinach, bananas and other foods, to promote gastrointestinal peristalsis and not easy to produce a large amount of gas after fermentation, which leads to abdominal distension. 2. Indigestion: Chronic gastritis patients have a reduced ability to digest food, food accumulation in the body is easy to ferment gas. You can take itopride hydrochloride, mosapride citrate tablets, gastric tablets and other drugs to promote gastrointestinal peristalsis, improve digestion and relieve symptoms. 3. Excessive secretion of gastric acid: The secretion of gastric acid in patients with chronic gastritis will increase compared with normal people, and excessive gastric acid will interact with the stomach contents to produce excessive gas. You can take drugs to inhibit gastric acid, such as omeprazole, lansoprazole, ranitidine and other drugs to reduce gastric acid secretion. If the gastritis patient’s stomach is easy to bloat need to clarify the cause of the disease and then take timely treatment measures to avoid the progression of the disease.