If stomach cancer has a mass in the abdomen, it is usually in the upper abdomen, that is, a mass may appear between the raphe and navel. Most of the stomach cancer patients cannot touch the lump in physical examination because the lump is small or found in time, but if the patient’s condition is late and the enlargement of the lump is very obvious, the lump can be touched in the upper abdomen. If the lump can be touched in the abdomen during physical examination, it usually suggests that the patient may have local lymph node metastasis or even distant metastasis. Usually, there are many enlarged lymph nodes on the side of the lesser curvature of the stomach and in the retroperitoneum, which have even been fused into a mass, and the patient’s localized foci of gastric cancer are very large, which even lead to ulceration and hemorrhage on the surface, and so on.