Bloating every night may be caused by eating more gas-producing food, weakening of gastric power, stomach cancer and other factors. 1. Eating more gas-producing foods: Some foods may produce a lot of gas when they enter the gastrointestinal tract, such as potatoes, sweet potatoes, pumpkins, soybeans, etc. If you eat these foods frequently, you may experience bloating every night. If you eat these foods frequently, you may experience bloating every night. Symptoms can be improved by improving the diet structure, such as eating less food that produces more gas. 2. Weakened gastrointestinal motility: When gastrointestinal motility is weakened, peristalsis in the gastrointestinal tract slows down, leading to indigestion. The accumulation of large amounts of food in the gastrointestinal tract may also lead to bloating every night. The symptoms can be relieved by medication, such as taking oral moxapride, cisapride, domperidone and other gastric stimulants. 3. Gastric cancer: Gastric cancer is a kind of malignant tumor that occurs in the stomach. Tumor tissues can not only grow into the cavity and occupy a certain space, but also invade the stomach wall and cause damage to the stomach wall. If stomach cancer occurs, you may experience stomach bloating every night. Symptoms can be improved by surgical treatment, such as radical resection and palliative resection. When bloating of the stomach every night occurs, one should consult a doctor in time and improve the examinations such as gastrointestinal function motility measurement, barium X-ray examination and gastroscopy under the doctor’s guidance to clarify the cause of the disease and treat it actively.