When gastric polyps recur and become cancerous two years after removal, endoscopic treatment or surgical resection is chosen depending on the size and invasion of the tumor. Seventy-five to ninety percent of gastric polyps are hyperplastic polyps, which are generally non-cancerous, followed by adenomatous polyps, which are considered to be the most cancerous polyps and are often accompanied by intestinal epithelial metaplasia or heterogeneous hyperplasia, according to studies. Polyps with a diameter of 2 cm or less and a shallow base can be treated endoscopically, while larger polyps or deeper invasions require surgical treatment. In addition, gastric polyp cancer is related to its size and number, the larger the diameter, the more obvious the atypical hyperplasia, the greater than 2cm gastric polyp malignancy increased significantly, the malignant rate of 23%; the more the number of gastric polyps, the more densely packed, the higher the rate of cancer.