The main causes of flatulence are: 1, gastrointestinal dysfunction, when the gastrointestinal dysfunction of the intestinal peristalsis is weakened, after eating food can not be discharged through the intestinal tract, at the same time, the intestinal food residue in the intestinal tract stays in the intestinal tract for a long time after the increase in gas production, resulting in flatulence, give to improve the gastrointestinal tract dynamics of the medication can be, such as domperidone, etc. 2, intestinal flora imbalance, when the body’s immunity When the immunity of the body decreases and the diet is not proper, the harmful bacteria in the intestines will become the dominant bacteria, and there will be an increase in gas production during the digestion of the intestines, and the harmful bacteria will damage the intestinal wall, resulting in flatulence and an increase in the number of stools. The main treatment is to supplement probiotics, such as bifidobacteria, lactobacilli, etc. 3, intestinal obstruction, when the intestinal tract is narrow or obstructed, the intestinal food can’t be discharged normally, and there will be an increase in gas production, which is mainly surgical treatment. 4, medication, such as Acarbose, etc., after long-term use of this kind of drugs, there will be an increase in intestinal gas production, which will lead to bloating, exhaust and other phenomena that can be disappeared by stopping the drug.