Radiofrequency (RF) treatment technology is a technique to treat diseases by precisely outputting ultra-high frequency radio waves through specific puncture needles to produce local high temperature in local tissues, which can play the role of thermal coagulation or cutting, thus it is called “radiofrequency thermal coagulation” or “radiofrequency ablation”. The radiofrequency instrument used for pain treatment is specially set up with nerve stimulation function, which can find and accurately locate the sensory and motor nerves, and block or change the nerve conduction with radiofrequency current, which can achieve the purpose of relieving pain. This physical neurothermal coagulation technique provides excellent control of the temperature and range of the thermal coagulation foci, and can reduce or eliminate pain while maintaining proprioceptive, tactile and motor functions after treatment. The main advantage of radiofrequency technology over other existing nerve destruction techniques is the availability of quantitative and predictable neurothermal coagulation foci. Radiofrequency ablation of the disc, also known as minimally invasive disc radiofrequency ablation (PIRFT) and disc radiofrequency targeted thermocoagulation, involves the penetration of a radiofrequency needle into the herniated disc to heat the herniated disc, causing protein coagulation of the herniated disc, retraction of the herniated disc due to reduced internal pressure, and repair of the annulus fibrosus to relieve nerve compression and irritation without affecting the nucleus pulposus within the disc. Radiofrequency ablation of intervertebral discs is mainly used for discogenic back pain, bulging and inclusive disc herniation, but not for larger herniations, nucleus pulposus prolapse and free.