Pain in the middle of the posterior vertebrae can be caused by supraspinous ligamentitis, fasciitis, herniated discs, and diseases of the spine itself. 1. Supraspinous ligamentitis: Supraspinous ligamentitis is a kind of aseptic inflammation, which is easily triggered after long hours of working at the desk. Patients mainly manifest pain in the middle of the vertebrae in the back, which is aggravated when bending over. 2. Fasciitis: If the patient suffers from fasciitis of the lower back, the patient will also show pain in the back, and there will be pain when localized pressure is applied. 3. Herniated discs: patients with herniated discs will experience pain in the back vertebrae after the lumbar vertebrae are deformed so that the local nerves are compressed. 4. Diseases of the spine itself: for example, arthritis of the spine, rheumatoid arthritis, ankylosing spondylitis, etc. These diseases of the spine itself can cause pain in the posterior vertebrae and are often accompanied by the phenomenon of morning stiffness. It is recommended that patients seek timely medical treatment, choose the appropriate treatment under the guidance of the doctor, and actively carry out the treatment.