Every time you have a particularly large amount of gas in the stool, it may be due to gastrointestinal dysfunction, overeating, chronic gastritis and other factors. 1. Gastrointestinal dysfunction: usually due to long time diet irregularity, bad mood fluctuations and other factors lead to the slowing down of gastrointestinal peristalsis, the intestinal gas can not be discharged normally, so that the phenomenon of particularly high gas in the stool. 2. Overeating: Overeating in a short period of time during meals may cause excess gas to enter the intestines and stomach, increasing the burden on the intestines and stomach, resulting in the phenomenon of particularly high gas in the stool. 3. Chronic gastritis: usually due to factors such as Helicobacter pylori infection leads to chronic inflammatory lesions of the gastric mucosa, due to the stimulation of inflammation, it is easy to make the gastrointestinal digestive dysfunction, which will lead to the phenomenon of particularly high gas in the stool. When there is a particularly large amount of gas in each stool, the symptoms continue to be unrelieved or accompanied by abdominal bloating, abdominal pain, nausea and other discomforts, it is recommended to go to the hospital for examination in a timely manner.