Lung cancer shoulder and back pain does not clarify the stage. Lung cancer stage needs to be clarified by histopathological test. Back pain may be caused by lung cancer or other factors. Clinically, the type of lung cancer can be accurately determined through histopathological examination of biopsy, and the specific stage of lung cancer can be determined through chest CT, nuclear magnetic resonance test, five tests of lung cancer and other tests to clarify the size of the tumor, the situation of surrounding lymph nodes, and whether there is metastasis. The patient’s signs and symptoms can only indicate that the disease has progressed and changed. Back pain of lung cancer patients may be caused by tumor metastasis, or it may be caused by long-term bed rest, or shoulder and back diseases, as well as other diseases. Lung cancer patients with simple symptoms of shoulder and back pain should not be too nervous, and it is suggested that patients should actively cooperate with doctors for treatment, ensure rest and enhance nutrition.