Ignoring the small needle knife requires extremely high comprehensive ability of the operator. It requires the operator to master local planing, meridians and manipulations skillfully, and can correctly judge the symptoms of the injured part and the causes of such symptoms, and it is the only reason. It is also necessary to correctly diagnose the level of the disease (muscle, ligament, fascia, bone surface) and stab it wherever it hurts. Only by seeing a high-level doctor can we make a dialectical diagnosis. However, in reality, patients receive needle knife treatment, which is much less than this requirement. Many of them dare to operate the knife on the patient because they are not skilled in the structure of the knife, and they can't tell which level the cause and disease are, and they can't tell how to use the knife. However, in actual medical treatment, most doctors with knives can't correctly and dialectically explain the cause and lesion site. If it is cured, I don't know how to cure it. If they are cured, they don't know why they have new symptoms. Compared with the uncertainty of the therapeutic effect of small needle knife in reality, it is certain that this treatment method is risky and has too many sequelae. Because it will definitely cut off some nerves (probably the main nerves), it will cause some damage to the meridians, blood vessels, muscles, ligaments and even periosteum of the body, leaving scars inside and poor blood circulation. The conclusion is that it hurts too much good parts of the body when it is tied, which increases the difficulty of body repair. On the contrary, acupuncture and taking medicine need little damage to meridians and intact blood vessels to achieve good results, so people who have used this therapy will definitely make the effect of acupuncture or taking medicine greatly reduced. Because in reality, most people have to prick several times at a time, and they often have to prick several times. Therefore, the damage to the local body is great, and many people have to leave lifelong damage.