Gastric smooth muscle tumor is a benign tumor of the stomach. Benign tumors of the stomach are divided into benign epithelial tumors of the stomach and benign mesenchymal tissue tumors of the stomach. Smooth muscle tumor belongs to benign tumor of gastric mesenchymal tissue, mostly found in the gastric body and gastric sinus, and its clinical characteristics are that most of the patients are middle-aged. Surgical resection is its main treatment method. The principle of surgical treatment is timely surgical resection, and the surgical method is selected according to the size and location of the tumor and the tendency of malignant transformation. Generally, the tumor is not simply removed, but is treated by partial gastrectomy including the tumor and its surrounding 2-3 cm; if the tumor is huge and located near the cardia, proximal gastrectomy or total gastrectomy is feasible. Moreover, for patients with initial surgical R1 (microscopic residual) resection, a significant proportion of false positives due to specimen crumpling on the one hand; and there is no clear evidence of a possible survival benefit of reoperation, so additional surgery is generally not advocated. In addition, regional lymph node dissection is not necessary because even if the tumor is malignant, there are rarely lymph node metastases. However, if intraoperative exploration reveals enlarged lymph nodes, the decision to perform lymph node dissection may be based on rapid pathological findings. The most common clinical symptom of gastric smooth muscle tumor is gastrointestinal bleeding, therefore, if you have any discomfort, you should seek medical treatment promptly.