A small amount of gas in the intestinal tract is a normal phenomenon and generally requires no special treatment; while excessive gas causes bloating and abdominal pain, which is called intestinal flatulence, i.e. excessive gas accumulation in the intestinal tract caused by various reasons and cannot be expelled. Intestinal flatulence can be divided into physiological intestinal flatulence and pathological intestinal flatulence, usually most of the physiological intestinal flatulence can be self-relieved within a few hours, while the symptoms of pathological intestinal flatulence need to be treated according to the individual conditions of patients: 1. lead to intestinal flatulence; 2. Inhalation of large amounts of gas: certain processes require large and rapid breathing, which can lead to gas entering the digestive tract, such as eating, drinking, strenuous exercise, chewing gum, etc. can lead to gas accumulation in the digestive tract, thus causing intestinal flatulence. Second, pathological intestinal flatulence: 1, intestinal peristalsis slowed down: abdominal surgery, especially gastrointestinal surgery patients, in the early postoperative period the peristaltic speed of the gastrointestinal tract is relatively reduced, resulting in the transport of gas and contents of the intestine slowed down and induced intestinal flatulence. In addition, some drugs also have the effect of reducing intestinal peristalsis, such as morphine drugs, intraoperative muscarinic drugs, postoperative analgesics, etc.; 2. Decreased intestinal patency: chronic inflammation of the intestine, ulcerative colitis, Crohn’s disease, habitual constipation, intestinal obstruction and other diseases can cause decreased intestinal patency and induce intestinal flatulence, which is more obvious for some patients with constipation. Patients should be highly alert if they have symptoms other than intestinal flatulence, and if necessary, go to the hospital for examination and treatment.