The bloated stomach may be related to physiological obesity, liver disease, gastrointestinal disease and other reasons. 1. Physiological obesity: usually due to excessive food intake, and usually lack of physical exercise, resulting in subcutaneous fat deposition and obesity, resulting in a bloated and large stomach. Usually after controlling diet and strengthening exercise, the subcutaneous fat deposited in the abdomen can be reduced. 2. Liver disease: such as cirrhosis, hepatitis and other liver diseases, can make the albumin synthesis decrease, portal vein pressure rise and other factors together lead to increased abdominal leakage of fluid, causing hepatic ascites. When the amount of ascites is too large, the abdomen can become noticeably distended and the stomach can become enlarged. There is also the possibility of secondary infectious peritonitis, causing a sudden increase in ascites. 3. Gastrointestinal diseases: For example, gastrointestinal diseases such as acute/chronic enteritis, irritable bowel syndrome, intestinal obstruction, etc., can significantly weaken the digestive function, leading to the accumulation of food, gas, etc. in the gastrointestinal tract, which will result in abdominal distension. When the stomach is bloated and large, it is recommended to adjust the dietary habits and do not overeat. If the symptoms are serious, you should go to the hospital as soon as possible, to clarify the cause of the disease, under the guidance of the doctor for symptomatic treatment.