Lumbar pain can not turn over that is limited lumbar activity, limited lumbar activity may be due to lumbar spine small joint disorder, may also be due to lumbar disc herniation. 1. Disorders of lumbar small joints: disorders of lumbar small joints, i.e. subluxation of small joints of lumbar vertebrae, because the joint capsule of lumbar vertebral articular eminence is relatively flaccid, and after being subjected to external force, it will cause incarceration of the bursa or subluxation of the small joints, which will result in severe pain in the lumbar region as well as the symptom of limited activities. 2. Lumbar disc herniation: Lumbar disc herniation will lead to tension and spasm of the soft tissues around the lumbar vertebrae, and at the same time, it will compress the spinal cord and spinal nerve roots at the back and lateral back. Acute episodes may also lead to inability to turn over due to severe symptoms of edema of the nerve roots. Low back pain can not turn over may also be osteoporotic pathologic fracture, cold and other factors, it is recommended to go to the hospital in a timely manner, improve the examination to clarify the cause of the disease, under the guidance of the doctor to give targeted treatment or treatment.