Lung adenocarcinoma may still metastasize after surgical lymph node dissection. Lung adenocarcinoma surgical lymph node dissection mainly removes the lymph around the tumor, which can reduce the possibility of tumor metastasis. However, lymph node dissection cannot completely prevent tumor metastasis, it only reduces the possibility of metastasis, and the tumor cells may still metastasize. After lymph node dissection, patients with lung adenocarcinoma usually need to cooperate with chemotherapy and radiotherapy to inhibit the growth and reproduction of tumor cells, which can effectively reduce the chance of tumor metastasis after surgery. Normally, patients should eat more nutritious food to supplement the nutrients needed by the body. Therefore, patients should also go to the hospital regularly for follow-up to observe the recovery of their condition. If there is any discomfort during the recovery period, they should go to the hospital in time to avoid any adverse effects.