The percutaneous disc laser repair system (PDLRS) was invented by Saendre Boris Ilyich, a leading neurosurgeon at Pavlov Medical University, Russia, and Suryazinga Lev Nikolayevich, an imaging specialist. -The DLRS uses low-intensity semiconductor laser radiation with an average power of 3 W and a wavelength of λ=0.97 μm to act on a herniated disc injected with an appropriate amount of salt solution (10% hypertonic saline) to produce a thermal capillary and thermoplastic effect inside the annulus fibrosus, and under the influence of superheated water vapor and heated water, the collagen is removed. Under the influence of superheated water vapor and heated water, the collagen denatures into gelatin and diffuses under pressure in the form of a solution along the cracks, laser channels and pores in the disc tissue according to the laws of thermal capillary diffusion and thermal permeation. Na+ and Cl- ions promote the dissolution of collagen in water, hence the use of hypertonic NaCl solution in laser disc repair. For large herniations (8-15 mm), the treatment is completed by direct vaporization of the “herniated body” in retrograde regression, PDLRS preserves the maximum physiological function of the disc tissue (less than 1% of the total disc volume is damaged), and the biological effect of the low-intensity laser activates the internal environment of the disc, thereby PDLRS uses a 1.6mm straight puncture needle and a patented elbow puncture needle, which is less invasive and expands the range of laser radiation. PDLRS is a new minimally invasive percutaneous intervention for the treatment of lumbar intervertebral disc protrusion (LIDP) after chemical nucleolysis, PLDD (percutaneous laser decompression of the disc), percutaneous discectomy and endoscopic discectomy, and is a new “PDLRS is suitable for the treatment of lumbar intervertebral disc protrusion, discogenic lower back pain and some cervical disc protrusion patients with inclusive and less than 1 cm. The effectiveness rate is >90%.