Gastritis is a common clinical disease, patients will appear vomiting malignant, stomach pain and other symptoms, severe systemic adverse symptoms, resulting in patients can not eat, affecting the entire family. Experts said that gastritis is mostly due to poor eating habits, need to attract people's attention. So, what are the causes of gastritis? 1. Long-term use of drugs to stimulate the stomach, food and eating rough food or smoking. These factors repeatedly act on the gastric mucosa, so that congestion and edema. 2. Gastric mucosa long-term congestion and hypoxia. Such as congestive heart failure or portal hypertensive patients, gastric mucosa for a long time in the congestion, hypoxia, causing nutritional disorders lead to gastritis . 3. Acute gastritis such as improper treatment, delayed healing can be transformed into chronic gastritis. 4. gastric acid deficiency, bacteria easily in the stomach breeding, can also cause chronic gastritis . 5. Nutritional deficiency, e...