Previously, 10 points of caution for conservative treatment of lumbar disc herniation were introduced, and many people felt it was useful. The article received a lot of hits and was listed as an excellent science article on the homepage of the website. We think that to really understand this article, we also need to understand the causes of lumbar disc herniation, to know what it is, and more importantly, to know what it is. Only by understanding its reasoning and remembering it in the heart can we grasp it flexibly and apply it flexibly. We have summarized the 4 main causes of lumbar disc herniation: 1. Disc degeneration. The lumbar intervertebral disc is one of the earliest organs in the human body to degenerate, degeneration begins at about 20 years of age, occurs and worsens with age. Degeneration can lead to intervertebral disc elasticity and resistance to pressure decline. 2, lumbar spine excessive weight bearing. Long-term sitting work, such as cab drivers. Heavy manual laborers, such as porters. Weight-lifting athletes. Many of the lumbar disc herniation patients we treat are cab drivers, so Dr. Wu Weiping of the Spine Surgery Department of Shanghai Tenth People’s Hospital is well known among our driver friends. 3. Lumbar spine negative injury. It leads to different degrees of tearing of the fibrous ring. For example, some adolescents participate in sports activities injury occurs protrusion. I treated several cases of adolescents who were only 15 to 17 years old, which seriously affected their studies, and some of them had already repaired their studies. After our minimally invasive surgical treatment, they quickly resumed classes and were able to take the college entrance exams normally. Some also got into famous universities. 4.Chronic injury. Mild, repeated crushing injuries cause different degrees of tearing of the fibrous ring, forming a weak spot from which the nucleus pulposus eventually protrudes. Many people have repeated sprains of the back, usually do not pay attention. Also do not strengthen physical exercise, and finally lead to lumbar disc herniation, seriously affecting work and life.