The main reasons for frequent exhaust are: 1, dietary factors, mainly eating high protein, high fat and heavy-smelling food, such as soy products, eggs, greasy food, onions and radishes. As the food in the gastrointestinal tract digestion process will produce a large amount of gas, so that the phenomenon of more exhaust. 2, gastrointestinal tract dysfunction, mainly due to the intestinal peristaltic function is weakened, resulting in the gastrointestinal tract food, food residues and feces can not be expelled through the intestinal peristalsis. These intestinal contents remain in the intestinal tract for too long, will produce a large amount of gas, resulting in excessive exhaust. 3, intestinal flora dysbiosis, under normal circumstances the intestinal flora is in a state of dynamic balance. When the immunity of the intestinal tract decreases, pathogenic bacteria become the dominant flora, and these pathogenic bacteria will produce a lot of gas during the digestion of food, resulting in increased farting. 4. Inhaling a lot of gas when eating outdoors will also lead to increased exhaust.