1. External stimulus

The first is physical stimulation, which means that the food that patients eat is too hot, too cold and too dry, which will cause damage to the gastric mucosa and cause inflammatory changes, thus causing gastroenteritis. Secondly, chemical stimulation, such as patients drinking strong tea, coffee and hot food for a long time, or patients taking drugs, may cause this disease, such as erythromycin and antibiotics will harm the gastric mucosa.

2. Bacterial pollution

With more and more patients suffering from gastroenteritis in clinic, it has been found in recent years that most patients are caused by bacterial infection or food. Generally speaking, if patients drink a lot, they suffer from excessive fatigue and mental stimulation. , are the cause of gastroenteritis. In addition, because the patient's body defense function is reduced, bacteria enter the intestine, and the virus will take this opportunity to reproduce and grow, thus causing gastroenteritis.