Burping after eating too much may be a normal physiological phenomenon, or it may be caused by stomach diseases or diaphragmatic diseases. 1. Physiological phenomenon: the stomach has the function of holding food and peristalsis, etc. When eating too much, if it exceeds the peristalsis of the stomach, it may lead to the gathering of gas and the phenomenon of hiccups. 2. Gastric diseases: When gastritis, gastric ulcer and other gastric diseases occur, it may lead to the gathering of gas in the stomach and slow down the peristaltic movement of the stomach, and the phenomenon of hiccups after eating too much. 3. Diaphragmatic lesions: eating too much may lead to increased pressure in the abdominal cavity. If there are tumors or abscesses in the diaphragm, the high pressure may stimulate the diaphragm to produce spasms and hiccups. There are other reasons for hiccups after eating too much, so once the phenomenon of hiccups after eating too much, you need to further check the gastroscope, abdominal X-ray and other items to find the cause of the hiccups and then under the guidance of the doctor for treatment.