Most cases of stomach tumors are malignant, with gastric cancer being the most common, but of course there are also some benign tumors that account for a very small percentage overall. Gastric mesenchymal tumors are malignant tumors. The risk is determined by the diameter of the tumor and the nuclear division phase within the tumor, for example, mesenchymal tumors under 2 cm are usually low risk, that is, low risk, and if they are over 5 cm they are usually high risk of recurrence. Gastric cancer is the most common malignant tumor of the stomach, which can appear in any part of the stomach, with the sinus part being more common. Most patients will experience distension and discomfort in the upper abdomen, accompanied by nausea and vomiting, etc. Surgery is usually required after a clear diagnosis.