Flatulence and bulging stomach may be physiological reasons, such as eating too much gas-producing food, you should avoid eating these foods; it may also be intestinal obstruction, you should fasting water, gastrointestinal decompression, if necessary, surgery; it may also be acute pancreatitis, etc., you should fasting water, gastrointestinal decompression, omeprazole, growth inhibitors and other treatments. 1. Physiological causes: eating too much gas-producing food, such as sweet potatoes, radish, food in the intestinal tract fermentation gas production, resulting in gastrointestinal flatulence stomach bulging, should be avoided to consume these foods; may also be eating too fast, talking during meals, resulting in more air into the gastrointestinal tract, resulting in gastrointestinal flatulence, should be chewed slowly, avoid talking during meals. 2. Intestinal obstruction: intestinal tumors, foreign bodies, fecal stones lead to intestinal obstruction, food and feces downstream obstruction, causing gastrointestinal flatulence and stomach bulging. It should be treated with water fasting, gastrointestinal decompression and surgery if necessary. 3. Acute pancreatitis: pancreatic inflammation, hemorrhage, edema, necrosis, inflammation and other causes of intestinal peristalsis slowed down, resulting in intestinal paralysis, which can lead to gastrointestinal flatulence and bulging stomach. You should eat water, gastrointestinal decompression, omeprazole acid suppression, growth inhibitors inhibit pancreatic enzyme secretion. Gastrointestinal flatulence stomach bulge in addition to physiological causes, there are many reasons (such as irritable bowel syndrome, chronic gastritis, etc.), should be timely to the hospital, under the guidance of the doctor to identify the causes and treatment.