Early stage of lung cancer usually does not have the symptom of back pain, and the appearance of back pain is usually considered as pleural disease, heart disease or vertebral disease in the back. Some patients in early stage of lung cancer have no symptoms, while some have respiratory symptoms such as cough, coughing up blood and chest pain. If patients present with back pain, it is generally recommended to improve blood routine, C-reactive protein, electrocardiogram, magnetic resonance of the vertebrae in the back, etc., so as to clarify whether the back pain is related to pleurisy, cardiac myocardial ischemia, thoracic and lumbar vertebral hyperplasia and other diseases. If back pain occurs in lung cancer patients, it should also be considered to be caused by metastasis of pleura, pancreas, vertebral bone and other tissues due to the progression of lung cancer, and it is generally recommended to do a number of examinations such as thoracic and abdominal CT, thoracolumbar vertebrae magnetic resonance, etc. to clarify the cause, and if necessary, it is necessary to do pathologic examination. If back pain occurs, it is suggested that patients should seek medical treatment as soon as possible to avoid delaying the condition.