The bloated stomach can be used to exhaust gas by lying on your back and holding your knees, kneeling on one knee, and sitting on your knees. 1. Lie on your back and hold your knees: bend your legs, lean toward your hips, and cross your fingers and hug your knees, alternately. This position helps to squeeze and massage the gastrointestinal tract, which also helps to expel the gas in the stomach. 2. Hands and knees kneeling position: prone position legs bent as close as possible to the abdomen, and hands or elbow joints together on the bed or on the ground, hips up. This position can compress the abdomen, stimulate the gas along the intestinal tract to discharge. 3. Kneeling posture: legs, feet together kneeling on the ground, and maintain an upright posture, while you can use the palm of your hand along the intestinal tract in the shape of a clockwise massage of the abdomen, which can assist in the normal peristalsis of the gastrointestinal tract, which will help to discharge the gas in the stomach. If the symptoms of flatulence are not relieved, or accompanied by other symptoms, you should go to the hospital in a timely manner, after a clear reason to give targeted treatment.