In gastroenterology specialist or specialist clinics, there are quite a lot of patients with gastric problems, some of them are new patients and others are old patients with different symptoms, and many of them cannot ask for specific reasons. Why are there so many patients with gastric problems? In summary, there may be several reasons: 1, bacterial infection, the bacteria known as Helicobacter pylori, is the main cause of chronic gastritis; 2, autoimmune gastritis, the patient is mostly accompanied by anemia; 3, duodenal fluid backflow into the stomach, why would it cause backflow? The reason is the dysfunction of the pyloric sphincter of the stomach, so that a large amount of bile, pancreatic fluid, intestinal fluid backflow into the stomach, causing inflammation of the stomach; 4, bad eating habits, such as preference for spicy and irritating food, long-term alcohol abuse, uncontrolled or irregular diet, love to eat too salty food, vitamin and vegetable intake is too little; 5, long-term use of drugs, such as aspirin, anti-inflammatory pain and other drugs; 6, excessive pressure in work life, long-term depression or anxiety; 7, have other chronic diseases, such as heart disease, liver cirrhosis, etc. Once the chronic gastritis, under the advice and guidance of the doctor to actively treat, now on the market stomach drugs are very much, many people know a little knowledge, very casual in the pharmacy to buy some drugs, some people even in the hospital to see the doctor, but also in accordance with the doctor’s instructions to take medication. It is important to know that there are three types of chronic gastritis, and there are differences in treatment, sometimes on an individual basis.