For recurrence of lung adenocarcinoma after surgery, there are mainly the following ways: 1) local recurrence, in situ recurrence, which is less likely to occur because after complete resection, in situ recurrence is unlikely, and such in situ recurrence is often not combined with obvious clinical symptoms; 2) metastasis in lymph nodes or metastasis in brain, bone, other organs or liver and other organs, which will appear in turn. symptoms. If local recurrence occurs, it can be combined with local tumor compression and infection, such as fever, cough, sputum, irritating coughing up blood, and lymph node metastasis can affect the function of the nerves, which can lead to hoarseness, as well as multiple lumps on the clavicle, manifesting as lymph node enlargement; 3. fainting symptoms; 4. When bone metastasis occurs in adenocarcinoma, unexplained bone pain may occur, and this bone pain should be highly alerted.