Constant bloating of the stomach may be caused by swallowing a large amount of gas, gastrointestinal obstruction, drug effects and so on. 1. Swallowing a lot of gas: patients with long-term mental stress and anxiety often swallow a lot of air at the same time due to repeated belching (hiccups), nausea, or swallowing saliva, etc. This situation occurs. You should regulate your emotions in time and use medication as prescribed by your doctor if necessary. 2. Gastrointestinal obstruction: Because of the obstruction of gas discharge from the anus, such as pyloric obstruction of the digestive tract, complete or incomplete intestinal obstruction, etc., it will lead to the accumulation of gas in the gastrointestinal tract, and the phenomenon of the stomach is always flatulence. Improvement of abdominal X-ray, CT and other examinations can be clarified. If necessary, gastrointestinal decompression, fasting and other treatments are needed. 3. Drug effects: after taking too much sodium bicarbonate, calcium carbonate and other drugs, carbon dioxide can be produced in the stomach, resulting in the phenomenon of constant flatulence. Some patients can be due to the application of a large number of antibiotics, the normal intestinal bacteria are inhibited, the intestinal flora changes, resulting in food fermentation and excessive gas production, the appearance of the stomach is always flatulence. In addition, the stomach is always flatulence can also be seen in other diseases, it is recommended to go to the hospital in time to do the relevant examination, the emergence of other discomforts need to be treated under the guidance of the doctor.