Ordinary gastric tubes are usually changed once every 1 to 2 weeks, and silicone gastric tubes are usually changed once a month. Failure to change a gastric tube for a long period of time may lead to obstruction, dislodgement, infection, and tissue damage. A gastric tube is a catheter inserted into the stomach through the nose or mouth to extract gastric juices or to inject fluids and medications. It is usually given in special cases such as oral diseases or inability to swallow, but long-term insertion of a gastric tube can damage the esophageal and gastric mucosa, and reliance on a gastric tube can lead to a decrease in a person’s own digestive ability and reduce normal peristalsis of the stomach and intestines. The open end of the gastric tube outside the body is easily infected under strenuous exercise. Diseases requiring prolonged use of gastric tube should pay attention to the care of gastric tube, for removable gastric tube, need to be pulled out as early as possible, gastric tube replacement time is recommended to go to the regular hospital consultation, under the guidance of the doctor to pull out.