Acid reflux at night consider the following aspects of the cause: First, gastroesophageal reflux disease: dinner eat too much, too greasy, lying down to rest after the symptoms of acid reflux, heartburn. Second, duodenal ulcer: duodenal ulcer is often characterized by acid reflux at night, and even cause abdominal pain at night, when eating or taking acid supplements, acid reflux, abdominal pain symptoms will gradually ease. Third, the night did not eat: some normal people due to the night for a long time did not eat, vagus nerve excitation, excessive gastric acid in the stomach, not in time to neutralize the food, there will also be acid reflux, heartburn, and even cause gastric smooth muscle spasmodic pain, this situation has a history of chronic gastric mucous membrane injury. Weekday diet should be light, warm and soft, easy to digest, avoid spicy stimulating food intake, avoid overeating, eat 7-8 minutes full, especially the amount of dinner should be less, avoid strong tea, coffee, alcohol and other stimuli. In addition, to eat small meals, develop a good diet and work habits, avoid staying up late, should be appropriate exercise, enhance physical fitness.