After clavicle fracture surgery, the back used to be painless, and now it hurts after one year, considering that it is related to trauma, inflammation, degenerative lesions, and other factors. 1. Trauma: It has been more than one year after clavicle fracture surgery, usually there is no back pain. Back pain is considered to be related to the role of external forces, such as local strains, lumbar muscle soft tissue injuries, incorrect labor posture, lifting heavy objects may lead to back pain. 2. Inflammation: spinal infections, rheumatoid arthritis, ankylosing spondylitis, etc. can also lead to back pain. 3. Degenerative diseases: herniated discs, osteoporosis, etc. If the patient is overworked and the back is cold, it can also cause pain. 4. Other factors: the pulling pain caused by visceral diseases, metastatic pain from tumors, herpes zoster are also the main causes of back pain. Frequent back pain, it is recommended to pay attention to local care, if necessary, go to the orthopedic department of the hospital to understand the causes of pain, and actively treat the cause.