Chronic hyperacidity is commonly associated with digestive system diseases and may be the early manifestation of gastric cancer patients, which should be taken seriously. However, some people may experience mild stomach pain, abdominal distension, heaviness, sometimes accompanied by vague pain in the anterior chest area, anorexia, nausea, vomiting, bloating after eating, belching, acid reflux and other digestive system symptoms, which are a group of common but unspecific early signs of stomach cancer. Long-term excessive stomach acid may stimulate local tissue lesions in the stomach, which may cause gastric ulcer and chronic superficial gastritis in mild cases, or may lead to gastric cancer in severe cases. For people with chronic stomach acidity, it is recommended to go to the gastroenterology department of hospital for gastric examination and treat them according to the examination results. Do not blindly take drugs on your own to avoid delaying your condition.