Patients with clear water in the middle of the night are caused by hyperproduction of gastric acid, also related to eating foods that promote gastric acid secretion before meals, such as hawthorn tablets or hawthorn, similar foods can cause hyperproduction of gastric acid and cause clear water in the middle of the night. If the patient does not eat the above-mentioned food, but usually has the phenomenon of clear water in the stomach, it may be caused by chronic gastritis or gastric ulcer. If there are clinical manifestations of acid reflux, nausea, vomiting, abdominal distention and indigestion, patients are advised to go to the hospital for further consultation and gastroscopy to clarify whether they have stomach diseases. If the symptoms are more frequent, you can choose to take drugs to relieve the symptoms under the guidance of a doctor, such as proton pump inhibitors, such as omeprazole, such drugs can inhibit the secretion of gastric acid and can relieve the symptoms of nocturnal gastric reflux.