Usually, 0.3cm polyps will not be removed by gastroscopy. The size and nature of the polyp are related to whether the polyp will be removed by gastroscopy. 1. Size: <0.5cm polyps, no need to remove, but should be regularly observed, check; >0.5cm polyps, need to consider surgical resection. 2. Nature: Inflammatory polyps are polyps caused by inflammation. If it is an inflammatory polyp, there is no need for surgical excision, and medication is sufficient. However, if it is an adenomatous polyp, this polyp type has the possibility of malignant transformation, and it is recommended to remove it as soon as possible under gastroscopy. It is recommended to consult a doctor for further examination of the polyp to determine whether it needs to be removed under gastroscopy as well as to choose an appropriate and standardized treatment.