A polyp in the stomach, the size of a green bean, should be clarified through pathological biopsy to determine the nature of the polyp before judging whether it is very serious. If the polyp is benign, it is usually not serious, if it is malignant, it is more serious. The size of a green bean indicates that the polyp is not large, gastroscopy can be endoscopically resected, the polyp will be sent to the Department of Pathology for biopsy, if the benign polyps are generally not serious, after the resection of a light diet, regular review can be. If there are symptoms of acid reflux, it can also be treated by taking drugs such as omeprazole, which should be applied under the advice of a doctor. Malignant polyps are more serious and should be treated with surgery or radiotherapy as prescribed by the doctor.