Gastric sinus posterior wall 0.5*0.5cm polyp usually can choose to take gastroscopic polypectomy. Gastric sinus polyp is a benign lesion, the size of the polyp is not very large at present, due to the gastric sinus polyp may cause some local irritation, thus causing stomach pain, nausea, loss of appetite and other symptoms. Surgical treatment is usually an option, and polypectomy is usually performed under gastroscopy depending on the size of the polyp. Gastric sinus polyps after polypectomy need to do further pathological examination to clarify the nature of the pathology, to exclude the possibility of malignant changes. In addition, gastric sinus polyps have a certain chance of recurrence, after surgery to the hospital for regular review, and pay attention to dietary adjustments, try to eat a light diet, avoid spicy and stimulating food.