Possible causes of lumbar middle bone pain include exertion, lumbar disc herniation, lumbar supraspinous ligamentitis, etc. 1. Exertion: If you suddenly do a lot of lumbar sports and exercise, or often sedentary in your work life, it may cause lumbar intermediate bone pain, which can be relieved after resting under normal circumstances. 2. Lumbar disc herniation: After lumbar disc herniation, it may show various symptoms depending on the location, size, duration of the disease and individual differences of the herniated nucleus pulposus. For example, lumbar 4-5, lumbar 5 – lumbosacral herniation in the lower lumbar and lumbosacral region, common persistent dull pain, lying position can be reduced, after standing for a long time aggravated. In addition, the pain can be along the buttocks, thighs, perineum and the back of the calf to the heel or dorsum of the foot, radiating stabbing pain, and in severe cases, electric shock-like pain. 3. Lumbar supraspinous ligamentitis: mainly manifested as back pain or lumbar pain, long-term sedentary, long time bending is common. The pain may have pressure pain, no redness and swelling. Bone pain in the middle of the waist may also be caused by other reasons, if the pain is severe or the symptoms persist, you should go to the hospital in time to improve the examination to clarify the cause of the disease, and then give targeted treatment or treatment.