Swelling of the stomach is usually considered to be related to the presence of abdominal fluid and abdominal obesity. 1. Abdominal fluid: Swelling of the stomach may be caused by liver diseases such as cirrhosis, which can lead to portal hypertension, hypoproteinemia, etc., resulting in obstruction of the return of blood and tissue fluids, and a large amount of fluid accumulation will pass through the tissues to form abdominal fluid. In addition, cardiac and renal insufficiency, abdominal tumors and other diseases can also cause peritoneal effusion. 2. Abdominal obesity: long-term use of glucocorticoids and other drugs or suffering from endocrine diseases such as Cushing’s syndrome, can also cause swelling of the stomach, there will be a full moon face, buffalo back and other centripetal obesity performance. At the same time due to excessive accumulation of subcutaneous fat and abdominal obesity will also appear in the phenomenon of swollen stomach. Swollen stomach may also be caused by other reasons, if the swelling does not ease or continues to worsen, it is recommended that the hospital to find out the cause, under the guidance of the physician standardized treatment, so as to avoid delays in the condition.