Definition: After the various parts of the lumbar intervertebral disc (nucleus pulposus, annulus fibrosus and cartilage plate), especially the nucleus pulposus, have different degrees of degenerative changes, the annulus fibrosus of the intervertebral disc ruptures under the action of external factors, the nucleus pulposus tissue protrudes from the rupture place (or prolapses) in the posterior or in the vertebral canal, leading to the stimulation or compression of the adjacent spinal nerve roots, which generates a series of clinical symptoms such as lumbar pain, one side of the lower limbs or both lower limbs numbness, pain, and so on. Symptoms. Pathogenic factors: 1, degenerative changes in the lumbar intervertebral disc 2, injury. Such as prolonged stooping labor, sedentary, lifting heavy objects, cold, pregnancy, improper sleeping posture, etc. 3, the weakness of the disc’s own anatomical factors. 4, age factors 5, lumbosacral congenital anomalies family care: flat bed rest, pay attention to lumbar warmth, avoid prolonged stooping labor, avoid lifting heavy objects.