Excessive gas is usually not significantly correlated with the liver, and is most often considered to be a result of eating foods that tend to produce gas, intestinal flora disorders, and irritable bowel syndrome. The digestive tract is connected to the outside world and contains gases, mainly carbon dioxide, nitrogen, methane, etc. Normal people excrete a certain amount of gas every day. Most of the gases in the intestines come from the gases swallowed from talking or eating, and the gases produced by bacteria decomposing food. Increased exhaust is due to increased gas production in the intestines and is usually not related to the liver. Increased gas swallowed from talking or laughing while eating or eating gas-producing foods such as onions and potatoes can lead to an increase in the amount of gas entering the gastrointestinal tract, resulting in increased exhaust. When there is intestinal bacterial dysbiosis, gas-producing bacteria increase abnormally in the intestinal tract, which can also lead to an increase in the amount of flatulence. At the same time, middle-aged patients may develop irritable bowel syndrome under the state of emotional anxiety and tension, which manifests itself as constipation or diarrhea, abdominal distension, abdominal pain, and an increase in the amount of gas and defecation. It is recommended to consult a doctor for diagnosis of the specific cause.