The causes of frequent flatulence are inhalation of large amounts of air, indigestion, eating too much gas-prone food and suffering from digestive diseases, as follows: 1, inhalation of large amounts of gas mostly related to poor eating habits and habits, talking during meals or overeating, wolf swallowing, inhalation of large amounts of air outdoors can lead to gastrointestinal flatulence. 2, indigestion, the spleen and stomach digestive function is reduced when you can not eat into the 3, ate too much easy to produce gas food, easy to produce gas food such as potatoes, sweet potatoes and other potatoes, onions, broccoli, cabbage and other vegetables, soy products, dairy products and carbonated beverages, etc. 4, many digestive diseases such as acute and chronic gastritis, gastric ulcer, duodenal ulcer will appear symptoms of bloating.