Thoracic spine pain can be caused by trauma, thoracic spinal stenosis, thoracic spine osteoarthropathy, osteophytes and so on. 1. Trauma: If the direct or indirect effect on the thoracic spine will lead to the emergence of fracture, in young adults are prone to violent fracture, the elderly will be due to sudden twisting, pulling fracture, will appear in the thoracic spine often fork in the air-like pain. 2. Thoracic spinal stenosis: Thoracic spinal pain may be caused by spinal stenosis, mainly due to congenital development, degenerative changes, trauma and other factors. 3. Thoracic spine osteoarthropathy: it is a kind of joint cartilage damage, and eventually there will be degeneration, fibrosis and fracture of joint cartilage, which leads to frequent pain in the thoracic spine. 4. Osteomalacia: if the influence of factors such as excessive weight, excessive exercise, malnutrition, trauma, etc., there will be thoracic spine osteomalacia, resulting in frequent pain like a fork in the air. Unexplained thoracic spine often fork-like pain, it is recommended to go to the regular hospital in time, a clear diagnosis.