The causes of bloating every night may include gastrointestinal dysfunction, excessive diet, gastritis, and so on. 1. Gastrointestinal dysfunction: disorders of the gastrointestinal flora, mental stress can easily lead to gastrointestinal dysfunction, which in turn triggers indigestion and produces symptoms of bloating and abdominal pain. 2. Eating too much food: eating too much food at night, the gastrointestinal tract can’t digest the food in time, resulting in more food stagnation in the gastrointestinal tract, which can easily lead to the symptoms of abdominal bloating. 3. Gastritis: Alcohol abuse at night or the stomach wall is infected by Helicobacter pylori bacteria can easily cause damage to the mucous membrane of the stomach wall, which will lead to gastritis, stomach pain, abdominal distension, vomiting symptoms. Patients usually need to pay attention to the diet structure, regular diet, moderate exercise to promote gastrointestinal digestion. If necessary, it is recommended that patients go to the hospital for relevant examinations to clarify the cause of the disease, and under the guidance of the doctor according to the specific conditions of the use of appropriate treatment to improve the symptoms of abdominal distension.