Gastric polyp 3-4 cm, if it is a single polyp, without obstruction, gastrointestinal bleeding, cancer, etc., can be discretionary without hospitalization; if it is a multiple polyp in the stomach, and there is a tendency to cancer, obstruction, gastrointestinal bleeding and other complications, it is recommended to hospitalize in a timely manner in order to carry out targeted treatment. Gastric polyp is a benign elevated lesion protruding from the surface of gastric mucosa, the surface is often smooth, can be caused by Helicobacter pylori infection, long-term application of proton pump inhibitors such as omeprazole, bile reflux, heredity, etc., nausea, abdominal pain, abdominal distension, loss of appetite, gastrointestinal bleeding, etc., and chronic long-term loss of blood can also lead to anemia and other symptoms. Gastric polyps 3-4 cm resection, it is recommended that timely medical treatment, combined with the condition of the polyp to develop a targeted treatment program, follow the doctor’s instructions, avoid eating spicy hot, alcohol and other stimulating foods after surgery.