A large and distended stomach is commonly found in the following conditions: First, flatulence, the most common and frequent in clinical practice, is mainly caused by the weakening of gastrointestinal dynamics due to various reasons, which reduces gas expulsion causing abdominal distension, such as dysbiosis leading to an increase in gas-producing bacteria and the production of more gas will also cause abdominal distension. There are also obstructions and other reasons that lead to intestinal inaccessibility and discomfort, which can also cause abdominal distension. Second, ascites, most commonly in liver cirrhosis and liver cancer, in addition to tuberculosis and tumors may also lead to ascites. Third, malignant tumors, malignant tumors in various locations in the abdomen can also cause symptoms of abdominal distension after growth.