The treatment of herniated discs is best carried out according to the following principle: “conservative but not minimally invasive, minimally invasive but not surgical”. There are many types of minimally invasive surgery with different efficacy. The emergence of “intervertebral foraminoscopy” at the beginning of the 21st century has brought the minimally invasive treatment of disc herniation to a whole new level. Intervertebral foraminoscopic disc removal is a subversive innovation in the history of disc herniation treatment and is superior to ozone and collagenase lysis, which are currently the most minimally invasive, safe and economical techniques. Currently, the procedure has become the leading surgical procedure for the treatment of spinal disorders in foreign countries. Compared with other minimally invasive techniques, foraminoscopic surgery has high safety, wide range of adaptation, less damage, more minimally invasive, and faster recovery. For patients who have undergone various treatments and have herniated again, the application of traditional surgery is traumatic, difficult and ineffective, while the application of foraminoscopy is also very effective due to its unique access. The advantages of this technology in treating lumbar disc herniation are also highlighted in the “Comparison of treatment with traditional surgery” presented earlier here. The advantages of minimally invasive technology are less trauma, less bleeding, faster recovery, and easier acceptance by patients. However, it is limited by the following factors: the equipment is expensive and not every hospital can purchase it; it is difficult to choose the operation style; it requires skilled operators; and it is a limited operation. For those with long duration of disease, severe nerve root scar adhesions, and severe stenosis of the spinal canal caused by combined lumbar (true) slippage or vertebral body posterior margin dissection, minimally invasive surgery should not be chosen, otherwise its efficacy will be affected. Intervertebral foraminoscopy is currently an internationally advanced minimally invasive surgical approach to spine surgery. The system combines advanced technology and clinical perfection, providing patients with a treatment method that is less invasive, shorter, safer and more reliable. It can remove the prominent nucleus pulposus, the hypertrophic ligamentum flavum and the hyperplastic and cohesive synapses and other neurological factors, thus obtaining a curative effect. The system is equipped with highly visible observation performance, flexible and stable fixation device and well-designed surgical instruments, which facilitate the smooth and efficient treatment.