Back pain does not usually occur after lung nodule surgery, but may be due to physiological factors such as overwork, improper sleeping posture, or due to osteoporosis, fasciitis and other diseases. 1. Physiological factors: usually when patients are overworked or sleep in an improper posture, back pain will often occur, which is a normal physiological phenomenon. 2. Osteoporosis: it is usually caused by the decrease of bone formation and the increase of bone resorption, and it is related to factors such as smoking, alcoholism, and low physical activity. Patients often have low back pain, spinal deformation, fracture, etc. Some patients can also be accompanied by generalized bone pain, chest tightness, shortness of breath and other symptoms. 3. Fasciitis: the cause of the disease is still unclear, mostly considered to be related to long-term muscle strain, poor posture, humidity, decreased immunity and other factors. Patients often have neck, shoulder and back pain, which may be accompanied by muscle stiffness, numbness and restricted movement. Patients are advised to take good care of themselves under the guidance of their doctors after lung nodule surgery, and to seek timely medical treatment if symptoms of back pain occur.