The most common cause of gastric acid reflux is gastroesophageal reflux disease, and some patients are related to peptic ulcer. If there is gastric acid reflux, first of all, we should pay attention to a light and regular diet, avoid spicy food, eat less sweets, avoid lying down immediately after eating, and obese patients should be advised to lose weight. At the same time, such patients can take acid inhibitors, such as omeprazole and rabeprazole, and can also be treated with mucosal protective agents, such as magnesium aluminum carbonate. If there is obvious gastric acid reflux, gastroscopy is recommended.