There are the following situations: 1, gastrointestinal problems, such as gastritis, gastric ulcer, duodenal ulcer and other diseases, will lead to gastrointestinal function is impaired, coupled with dietary intolerance diet unhealthy, there may be a flatulence in the stomach always farting. Need to go to the hospital to do gastroscopy and enteroscopy, clear specific diseases after symptomatic treatment. 2, eat too fast, gastrointestinal digestion of food needs a process, if you eat too fast digestive function will not be able to keep up. In addition, eating too fast is also easy to swallow a lot of air, which may appear in the stomach with flatulence always exhaust. So usually eat to chew slowly to concentrate, do not talk during meals. 3, eat easy to produce gas food, such as beans food, potato food, radish, etc., eat too much of this food is prone to flatulence in the stomach is always the case of exhaust, so you need to reduce the amount of intake of this type of food.