The common clinical causes of back pain and fatigue include back fasciitis, lumbar disc herniation and spinal lesions. 1. Fasciitis of the back: when the back is cooled or hit by external force, it may cause aseptic inflammation of the fascia, which is clinically manifested as back pain and fatigue. 2. Herniated lumbar intervertebral disc: the protruding nucleus pulposus of people suffering from this disease will press on the nerves or blood vessels and other tissues, thus causing back pain, accompanied by lumbar and leg pain, numbness and other symptoms. 3. Spinal lesions: clinically common ankylosing spondylitis, etc., the sick people in the morning when the cervical spine, thoracic spine, lumbar spine and other parts of the stiffness, but also back pain, general weakness and other symptoms. If you have symptoms, you should go to the hospital in time, and standardize the treatment under the guidance of the doctor.