The common causes of pain in the middle of the back vertebrae include lumbar muscle strain, supraspinous ligamentitis, compression fracture of thoracolumbar vertebrae, etc. It is recommended to go to the corresponding department of the hospital to improve the examination, including X-ray, CT or MRI. 1. Lumbar muscle strain: due to frequent physical labor, the lumbar and back muscles are in a state of tension for a long time, thus causing pain in the middle of the backbone, at this time, CT or MRI is used for differential diagnosis. 2. Supraspinous ligamentitis: after keeping a posture for a long time, supraspinous ligamentitis can be caused, resulting in pain in the middle of the backbone, at this time, MRI is used to make a clear diagnosis. 3. Thoracolumbar spine compression fracture: young people may be due to trauma, the elderly due to osteoporosis caused by compression fracture, can appear in the middle of the back vertebrae pain, at this time to do the thoracolumbar spine CT or X-ray and other tests to clarify the diagnosis. There may be other reasons for the pain in the middle of the vertebrae in the back, so it is recommended to go to the hospital in time, improve the examination to clarify the cause of the disease, and carry out standardized treatment under the guidance of the doctor.