Now suffering from lumbar spondylosis, a considerable part is caused by lumbar degeneration, so what exactly is lumbar degeneration, lumbar degeneration is how it happens, which is a relatively new problem for many people, but we should understand such issues so as to better avoid the occurrence of lumbar spondylosis, the following is a detailed description of how lumbar degeneration occurs. I. Intervertebral disc degeneration stage The degeneration of the intervertebral disc begins at the age of 20. The instability of the vertebral segment caused by degeneration of the fibrous ring is the main factor that causes and accelerates the degeneration of the nucleus pulposus. The degenerated nucleus pulposus may protrude posteriorly with the cartilage plate, and if the nucleus pulposus crosses the posterior longitudinal ligament, it is called nucleus pulposus prolapse. The posteriorly protruding nucleus pulposus may compress the spinal cord as well as compress or irritate the nerve roots. As the disc itself becomes less resistant to pressure and tensile forces, the disc changes its anatomical position. At the same time, the major ligaments around the node (anterior and posterior longitudinal ligaments) also undergo degenerative changes, so that the entire intervertebral joint is in a loose state. Due to the elevated and unevenly distributed pressure in the intervertebral space, the nucleus pulposus moves and breaks through the weakness of the posterior longitudinal ligament, forming a herniated or prolapsed nucleus pulposus backward. From the biomechanical point of view, the formation of bone superfluity, like the hypertrophy and hyperplasia of small joints and yellow ligaments, is a compensatory and reestablishing balance of lumbar spine biomechanics caused by the degeneration of intervertebral discs, the change of elastic modulus of intervertebral discs, the increase of internal pressure, the destabilization of intervertebral joints and the redistribution of stress, so that the affected joints can be relatively stable, and thus the local reactive and traumatic inflammation can also play a corresponding receding role. The effect of this is to reduce the local reactive and traumatic inflammation. Bone spurs occur as a result of mechanization, ossification, and calcification of the ligament-disc space hematoma. During the mechanization phase of the bone flap, it can be reversed with effective treatment. Once the bone spur is formed, it is difficult to make it subside, although certain drugs can stop its further development. The hardness of the bone spur is not only related to the time of its growth, but more importantly to the degree of its calcification, some of which can be as hard as ivory. Secondary changes As mentioned above, degeneration alone does not necessarily cause symptoms. The degeneration of the disc and the formation of bone spurs can cause symptoms depending on the corresponding changes in the surrounding tissues caused by both. 1. The pathological changes in the spinal nerve roots are mainly from the bone spurs at the lateral posterior edge of the vertebral body. Joint instability and herniation of the lateral posterior edge of the disc can also cause irritation and compression of the spinal nerve roots. Early reactive inflammation such as edema and exudation can occur in the root cuff, and continued compression can cause arachnoid adhesions, which can cause or aggravate irritation of the nerve roots due to pulling when the vertebral body moves. 2, the compression of the spinal cord can come from many sources, both from the protruding disc, protruding into the vertebral canal of bone, and from the yellow ligament hypertrophy and intervertebral joint instability after the formation of the slide and the emergence of the “clamp”. The pathological changes in the spinal cord depend on the intensity and duration of the pressure. Acute compression can cause impaired blood flow, tissue congestion and edema, and after prolonged compression, vascular spasm, fibrous changes, canal wall thickening and even thrombosis. Prevention of lumbar degeneration 1, health check-ups: regular health check-ups, pay attention to check for congenital or idiopathic deformities of the spine, if there is such a condition, in the future is very prone to low back pain and induced disc herniation. For workers who are already engaged in strenuous lumbar sports, such as manual laborers, athletes and acrobats, attention should be paid to health checkups, and if there are structural defects should be strengthened to protect the low back from repeated injuries. For trauma leading to low back pain, physical examination must be done to exclude changes in the structure of the low back and to deal with acute pain in a timely manner to avoid the development of chronic pain. 2, correct bad life posture: when sitting, do not cross your legs, when you need to work in a fixed position, especially when such as bending posture, bending time should not be too long, and do not bend excessively, should be appropriate in situ activities, intermittently do some stretching activities, especially lumbar back activities, in order to release the lumbar back muscle fatigue. Life must pay attention to maintain the correct posture, to overcome bad habits. 3., strengthen muscle exercise strong back muscles, can prevent lumbar back soft tissue injury, abdominal and intercostal muscle exercise, can increase intra-abdominal pressure and thoracic pressure, at this time help to reduce the load on the lumbar spine. You can insist on swimming or doing the flying swallow point water exercise. Insist on doing bridge exercises in bed. The best exercise such as swimming, you can use the buoyancy of the water to minimize the force on the lumbar spine, and at the same time exercise the muscles of the low back. 4, cold: the wet season should pay attention to warmth in time to avoid wind, cold and moisture invasion of the diseased parts of the human body, at the same time, avoid strain induced recurrence of the disease.