The stomach pause can be caused by physiologic factors such as diet or pathologic factors such as diaphragmatic spasm, gastric disorders, arterial disorders, etc. It can also be caused by normal conditions. Gastric puckering may be caused by heartbeat or abdominal aortic pulsation, or it may be caused by muscle contraction due to stomach smooth muscle spasm. 1. Physiological factors: some bad eating habits, such as overeating, eating too fast, too much, too spicy, or the abdomen is cold and other factors, will make the smooth muscle of the stomach stimulation, spasm, and feel the sudden jump in the stomach. Some of the thinner or thinner abdominal wall of the normal people, or emotional stress, can appear heartbeat or abdominal aortic pulsation obvious, produce the feeling of sudden jump of the stomach. 2. Spasm of diaphragm: the stomach mouth usually refers to the gastric cardia, the gastric cardia is close to the diaphragm, when the diaphragm produces spasm, it may drive the stomach, so that the patient feels the stomach mouth jumping. 3. Stomach diseases: such as gastrointestinal dysfunction, gastritis, etc., will make the patient appear gastrointestinal peristaltic dysfunction, gastrointestinal flatulence and other symptoms, and some patients may have the sensation of sudden jumping of the mouth of the stomach. 4. Arterial disease: when patients suffer from abdominal aortic aneurysm and other diseases, the patient’s abdominal aorta will increase in size, the sense of beat will be strengthened, resulting in patients feel the sudden jump in the stomach, when the stomach beating feeling is usually consistent with the rhythm of the heartbeat. When patients have long-term or recurring stomach pounding sensation, it is recommended to seek timely medical treatment to identify the cause of the disease and carry out targeted treatment to avoid delaying the condition.