Review after gastric surgery, the anastomosis is smooth, and a slightly larger lymph node is found in the peripheral mesenteric area, which is mostly normal, but the possibility of lymph node metastasis and inflammatory enlargement of lymph nodes from gastric lesions should also be considered. After gastric surgery, localization with slightly enlarged lymph nodes is a normal reaction in most cases, because surgery is very traumatic, and local inflammation, tissue hyperplasia, and enlargement of lymphatic tissues after surgery are relatively common physiological phenomena. In addition, the cause should also be analyzed according to the results of preoperative local pathological examination. If the stomach belongs to malignant lesions before and this enlarged lymph node is not found in the preoperative examination, it is necessary to be alert to the fact that the tumor cells reach the lymph nodes along the lymphatic circulation after the operation, and lymph node proliferation and metastasis occurs, and it is necessary to cooperate with the postoperative radiotherapy and chemotherapy treatment in a timely manner. Chemotherapy drugs can be 5-FU, vincristine and so on. If it is not a malignant tumor in the stomach, this slightly larger lymph node may be inflammatory enlargement. Inflammation of the lymph nodes can be caused by the damage of the tissues in the surgical area caused by the surgery and the absorption of local stasis. Inflammatory factors enter into the lymph nodes through lymphatic reflux, resulting in inflammatory enlargement of the lymph nodes, which requires appropriate anti-inflammatory treatment and review.