Lumbar disc herniation is the result of acute and chronic injury based on degeneration and aging of the lumbar thrust. Strangely enough, lumbar herniation is most common in young adults between the ages of 35 and 50. In other words, it is an “aging disease”, not an “old man’s disease”. In old age (after 60 years), few people get lumbar synostosis. If you have not suffered from lumbar synostosis before the age of 60, you will hardly be bothered by it after the age of 60. This is because after the age of 60, the central nucleus pulposus of the intervertebral disc is severely degenerated and can become completely fibrotic or calcified and atrophied, the intervertebral space is relatively narrow, and the mobility of the spine is less than in young adults. Thus, even if the annulus fibrosus ruptures, the nucleus pulposus does not easily protrude outward. Therefore, the chance of lumbar disc herniation in the elderly decreases with increasing age.