Women’s back pain in the middle of the spine may be caused by osteophytes, lumbar muscle strain, ankylosing spondylitis and other reasons. 1. Osteomalacia: It is a bony growth formed at the edge of normal bones. The causes of its formation include heavy physical labor, trauma, excessive weight, and excessive exercise. When osteophytes appear in the middle of the dorsal spine, they may press on the nerves, thus triggering symptoms of pain. 2. Lumbar muscle strain: it is a kind of chronic injurious inflammation of lumbar muscles and their attachment points of fascia or periosteum, which may be caused by overloading, poor posture in lumbar activities and other reasons. When lumbar muscle strain occurs in the middle of the backbone, pain in the middle of the backbone can also occur. 3. Ankylosing spondylitis: it is a chronic progressive inflammation of the spine, which belongs to polygenic genetic disease, and the onset of the disease may be related to some bacterial infections. Patients can manifest as low back pain, spinal ankylosis and other symptoms, that is, the phenomenon of back spine pain in the middle of the spine. In addition, female back spine pain can also be seen in other diseases, it is recommended that patients go to the hospital in a timely manner, in accordance with the doctor’s instructions for treatment, to avoid delaying the condition.