Abdominal swelling may be caused by indigestion, cirrhosis of the liver, abdominal tumors and other reasons. 1. Dyspepsia: when patients suffer from dyspepsia, the food in the gastrointestinal tract is abnormally fermented, generating a large amount of gas, resulting in intestinal lumen distension, leading to abdominal swelling in patients. 2. Cirrhosis: if the patient has cirrhosis, it will lead to hepatic portal hypertension, resulting in intestinal stasis and extravasation of capillary fluid leading to the formation of ascites; cirrhosis will also lead to the occurrence of hypoproteinemia, and the decrease of plasma colloid osmotic pressure will lead to extravasation of plasma and the formation of ascites. 3. Abdominal tumor: if the patient has a large tumor in the abdominal cavity, it will cause the patient to develop abdominal mass, and if the tumor is secretory, it will lead to the appearance of ascites, which will also cause the patient to develop abdominal swelling. When the patient occurs abdominal swelling may also be caused by other reasons, it is recommended to consult the doctor in time, under the guidance of the doctor for targeted treatment. Please do not take medication on your own to avoid delaying your condition.