Lung cancer will certainly cause chest pain, especially when lung cancer is combined with pleural invasion, pleural effusion and rib metastasis or spinal metastasis, which will lead to obvious chest pain. Therefore, if you have chest pain, you must rule out lung cancer, especially for middle-aged people with long-term smoking history with cough, blood in sputum and family history of lung cancer, you should have lung CT examination or fiberoptic bronchoscopy in time to find out the possibility of lung cancer.