Laser is an artificial light produced by the high-energy excitation of material atoms, which is characterized by high brightness, high monochromaticity, high directionality and high coherence. The application of laser surgery in the field of medicine mainly utilizes the thermal and mechanical cutting effects produced by strong lasers on biological tissues. When the laser irradiates the surface of the tissue and is completely absorbed, the local temperature rises rapidly, causing the tissue to dehydrate and produce coagulation and atrophy, so that the tissue is completely vaporized and absorbed. Through the laser’s vaporization cutting and coagulation of the nucleus pulposus tissue, the nucleus pulposus tissue is reduced, the pressure inside the intervertebral disc is lowered, the pressure of the herniated intervertebral disc is decreased and the annulus fibrosus is retracted; at the same time, the laser’s thermal effect eliminates the sensitive peripheral nerves inside the intervertebral disc, alleviating the pain, and, additionally, eliminating or alleviating the electrophysiological changes caused by inflammatory mediators inside the intervertebral disc, so as to achieve the purpose of the treatment. The main advantages of percutaneous laser disc vaporization and decompression 1, basically no bleeding: the operation is a 1.3 mm diameter puncture needle into the protruding disc, so there is basically no bleeding. 2, only local anesthesia can be treated: local anesthesia at the puncture site, so that some patients with heart disease, diabetes, etc., who are unable to undergo general anesthesia, can also undergo the procedure. Short hospital stay: It takes about 30 minutes from the injection of anesthesia to the end of the operation. You can return to normal life in 3 days after the surgery. 4, does not leave scars: Since only a fine needle is inserted into the body and introduced into the laser fibers, there will be no scars left on the skin. Good efficacy: among the treated patients, 60% are cured on the same day after the operation, 20% are cured one week after the operation, and 10% are cured one month after the operation, which is comparable to the effect of open surgery. 5, high safety: overcome the spinal instability, nerve root damage, paraplegia and other complications caused by open surgery. 6, lower fees: compared with the traditional tens of thousands of dollars for open surgery, the surgery greatly reduces the cost of hospitalization of patients.