Lung cancer is a common malignant tumor with high morbidity and mortality, although the characteristics of shoulder pain are obvious. If the patient has lung cancer, his shoulder may be numb, painful and uncomfortable. This symptom will be more obvious during the activity. If shoulder pain occurs in patients with lung cancer, it may be because the tumor has invaded the brachial plexus, leading to nerve damage, causing such symptoms. Once a patient is diagnosed with lung cancer, he or she needs to go to the hospital for further diagnosis to clearly judge the severity of the disease. Carry out corresponding treatment under the guidance of doctors. If surgery can be performed, it must be performed. After the operation, the corresponding radiotherapy and chemotherapy treatment shall be carried out according to the stage. Early lung cancer patients are better after their recovery. During this period, they should eat light food, quit smoking and drinking, and not eat greasy, spicy and stimulating food.