Gastric polyps are single or multiple, and the risk of cancer is related to the size of the polyp and the type of pathology. Generally, gastric polyps are highly cancerous if they are multiple. Gastric polyps are benign lesions. Under normal circumstances, if the polyps are small and the number of polyps found is small, they will not be malignant after removal under gastroscope. However, if the number of gastric polyps is high and the lesions are large, and the cause of the disease is not known, the gastric polyps that are multiple in the long term are prone to recur and easily induce cancerous changes. In addition, no matter whether the gastric polyp is single or multiple, after gastroscopic removal, it must be sent to the Department of Pathology for immunohistochemistry to clarify the nature of the gastric polyp, and thereafter regular review gastroenteroscopy, timely detection of gastrointestinal mucosa whether polyp recurrence, and regular treatment.