Bloating of the stomach may be caused by dietary factors, or it may be caused by indigestion, chronic gastritis, cirrhosis of the liver and other disease factors. 1. Dietary factors: eating a lot of gas-producing foods, such as beans, sweet potatoes, etc., or overeating can cause bloating. 2. Indigestion: Indigestion can be characterized by bloating, early satiety, belching, nausea, vomiting, increased exhaust, constipation, loss of appetite and other symptoms. 3. Chronic gastritis: patients with chronic gastritis may have epigastric discomfort, such as pain, fullness, etc., especially after eating a little bit of food, early satiety symptoms. 4. Cirrhosis of the liver: most of the symptoms of cirrhosis of the liver are mild, such as abdominal distension, loss of appetite, weight loss, jaundice, fatigue and so on. When the symptoms of bloating appear, it is recommended to go to the hospital in time, and choose the appropriate treatment and medication under the guidance of the doctor.