Back pain two months after right lung surgery may be related to the surgery, such as pleurisy, pleural adhesion, etc., or it may not be related to the surgery, for another disease, such as intercostal neuritis, spinal lesions, etc. causing back pain. 1. Pleurisy: after lung surgery, due to the decline in the patient’s immunity, during the surgery, the chest cavity is infected by bacteria, which will lead to the emergence of pleurisy, and the patient often manifests chest pain and tightness in the chest, dyspnea, and the pain can be radiated to the back. 2. Thoracic adhesion: after right lung surgery, the lung tissue and pleura are damaged due to surgery and pleural adhesion occurs, which can cause back pain, especially when deep breathing is more obvious. 3. Intercostal neuritis: mostly caused by herpes zoster, but also due to trauma, infection and other factors caused by inflammation, the most prominent symptom is pain, pain from the back to the front of the radial distribution of tingling over burning pain. 4. Spinal lesions: such as vertebral compression fracture, especially common in the elderly, can be manifested as back pain. If the pain symptoms after right lung surgery continue to be unrelieved, consult a doctor in time to find out the cause of the disease and treat the symptoms.