1, minimally invasive is not only a method, but also a concept, that is, to achieve the best therapeutic effect with the least trauma, and not simply to pursue minimally invasive and minimally invasive. There are many methods for minimally invasive treatment of lumbar spine diseases, which can be roughly divided into three categories: The first category: radiofrequency, ozone, low-temperature plasma and other methods, which belong to the category of interventional treatment and are suitable for cases with intact fiber ring and less serious disc herniation. Some cases are performed in the pain department, radiology department or rehabilitation department, but the efficacy is limited due to the gap in knowledge of the disease by the applicator and the limitations of the method itself. In comparison, the orthopedic department is better at deciding whether the patient is suitable for such treatment due to the variety of means and the relatively deeper knowledge of the disease, thus ensuring the efficacy. The second category: discoscopic or foraminoscopic surgery, which is suitable for most cases and has a definite efficacy due to the direct targeted release of the compression. The third category: decompression and internal fixation is accomplished by microcannulation (as opposed to traditional open major surgery) and percutaneous pedicle screw internal fixation, which is suitable for severe herniation or combined lumbar instability cases. Therefore, the first method cannot be exaggerated as the only minimally invasive method because it is non-invasive (it is through puncture) and less invasive, and it should not be applied to all cases, nor is the third method not minimally invasive because it is open and stapled. Each method has its own best patient, so we say: what is suitable is the best. 2. Minimally invasive discoscopic surgery was initially applied mainly to middle-aged and young people with herniated discs. With the deepening understanding of discoscopic use, increasing number of cases, accumulation of experience, skillfulness and improvement of instruments, age is no longer the main factor to decide whether it can be applied. Combined with the newly available minimally invasive percutaneous pedicle screw system, expandable trocar tube system, headlamp, and magnifying goggles, minimally invasive applications in spine surgery are becoming more and more widespread.