I believe we have all heard of the disease gastritis, and many people with poor gastrointestinal function have found out that they actually have gastritis after they have been examined. Gastritis is very harmful and can cause various diseases, and the cause of gastritis itself is very complex. So what is the cause of gastritis? 1, viral infection Chronic gastritis mostly appears after acute gastritis, which has some connection with bacteria, such as Helicobacter pylori infection as well as viruses or some other toxins. The actual fact is that you will be able to get a lot more than just a few of the most popular and popular items in the marketplace. 3, drugs Some drugs can cause damage to the stomach after entering the stomach, such as Protaxone, anti-inflammatory pain and salicylates, etc., can lead to chronic gastric mucosal damage. 4, bile reflux in the bile contains bile salts, this substance will also damage the gastric mucosa after entering the stomach, will allow hydrogen ions in the gastric juice into the gastric mucosa and thus cause inflammatory reactions. 5, environmental changes Whether it is a change in the surrounding environment, or a change in climate over a period of time will make the stomach take some time to adapt, and over a long period of time will cause disruptions in the nerve function governing the stomach, which will cause gastric secretion and movement of the stomach to become uncoordinated and eventually lead to gastritis. The actual fact is that you can find a lot of people who are not able to get a good deal on a lot of things.