If gastric polyps undergo malignant transformation, we generally refer to it as malignant tumors of the stomach, commonly known as gastric cancer. However, treatment varies depending on the size and extent of the malignant transformation of the gastric polyps. Generally, endoscopic resection is the preferred method of treatment. However, if the gastric polyps have become significantly large or deeply infiltrative, we recommend surgical intervention, such as partial gastrectomy under laparoscopy. Gastric polyps are relatively common in clinical settings, and most of them are benign. Of course, over time, a small percentage of patients may develop malignancy, commonly known as gastric cancer. Typically, for gastric cancer, endoscopic resection is the primary treatment choice, supplemented by laparoscopic surgery removal. Furthermore, if the patient shows lymphatic spread, it is considered progressive gastric cancer, and in addition to surgery, chemotherapy can be considered. Generally, the treatment outcomes for early-stage gastric cancer are quite favorable, hence it is recommended that patients pursue proactive treatment.