Hand joint pain caused by lung cancer is characterized by more severe pain and accompanied by symptoms of lung cancer. 1. More severe pain: joint pain of lung cancer patients is characterized by severe paroxysmal pain, often accompanied by joint swelling and pathological fracture, etc. Cancer cells in late stage of lung cancer can easily metastasize and spread to bone and joints, which will cause pain and swelling in the affected area. 2. Accompanied by symptoms of lung cancer: Hand and joint pain caused by lung cancer is not an independent symptom, but often accompanied by symptoms of lung cancer, such as cough, chest pain, spitting blood sputum, chest tightness, dyspnea, fever and so on. Various reasons can cause hand joint pain, such as strain, sprain, rheumatism, rheumatoid, infectious factors, etc. It is not necessarily caused by lung cancer, and in order to know the condition, it is necessary to do chest X-ray, tumor marker, X-ray and other related examinations. Patients with hand and joint pain of lung cancer should actively consult the doctor and do not use medicine by themselves to avoid adverse results.