Lung cancer can cause pain that can be localized in the pleura or chest pain, or generalized pain. Localized pain of lung cancer can be aggravated after inspiration, that is to say, after invasion of pleura, the pain can be aggravated when deep inspiration, and it can also be accompanied by clinical manifestations such as coughing, coughing sputum and coughing blood. If lung cancer metastasizes throughout the body, such as bone metastasis or bone metastasis of the limbs, it may cause pain in the whole body, back pain or even lumbar pain. Pleural thickening, pleural invasion or pleural effusion can be detected by lung CT. And a whole-body bone scan can detect obvious bone destruction, radionuclide concentration, etc., thus confirming the diagnosis of bone metastasis. For the pain of lung cancer, analgesic drugs with systemic treatment can be used.