When regurgitation and vomiting occur at night, three causes are considered, as follows: First, gastroesophageal reflux disease: Patients who eat too much fatty food at dinner will experience acid reflux, heartburn, and even nausea and vomiting after resting flat on their backs. Second, gastroduodenal ulcer: patients often have the characteristics of night pain, hunger pain, when taking acid-suppressing drugs after the symptoms will gradually ease, pain at the same time the patient will be accompanied by nausea, want to vomit and other digestive system symptoms. Thirdly, other factors: Some normal people have acid reflux and nausea due to long time without eating at night, resulting in vagus nerve excitement and excessive stomach acid in the stomach, which is not neutralized with food in time. Weekday life should pay attention to warm, soft, light, easy to digest food, avoid spicy, stimulating food intake, avoid overeating, especially dinner into the eighth full can, avoid strong tea, coffee and other stimuli, to eat less and more meals, to develop a good diet and rest habits, avoid staying up late, appropriate exercise, enhance physical fitness.