Stomach acidity is mainly excessive secretion of gastric acid, excessive secretion of gastric acid is divided into two kinds: first, physiological acid reflux is due to excessive fatigue, mental tension, emotional instability, gastric acid secretion nerve is not controlled by the cerebral cortex caused by, but also because of certain drugs such as anti-inflammatory drugs caused by irregular diets so that the stomach in a long-term fatigue state increases the incidence of gastroparesis, resulting in the stomach has a lot of gastric acid prone to produce reflux. Drink a glass of warm water, keep sitting, avoid popping food, adjust the diet, correct the mentality or stop taking the drug can be. Secondly, acid reflux is caused by chronic gastritis, gastric or duodenal ulcer disease, chronic gastritis can lead to abnormal gastrointestinal tract dynamics, promote gastric acid secretion, acid reflux often occurs, and pathologic acid reflux should be actively searching for the cause of the disease, and take acid-suppressing drugs, such as proton pump inhibitors.