The spinal endoscopic nucleus pulposus removal procedure has gradually become a trend in the treatment of lumbar disc herniation. The advantage of this procedure over conventional lumbar open surgery is that the herniated nerve compression can be removed without removing muscle or bone. With the exception of lumbar instability and slippage, which require internal fixation and fusion, simple disc herniation with or without calcification and lumbar spinal stenosis can basically be resolved by this technique. This technique can effectively remove the herniation, grind away little bone, and enlarge the intervertebral foramen. Its advantage is also its disadvantage, as the trauma is minimal, less than 8 mm, but there is a possibility of incomplete removal due to the limited field of view to complete the surgery. This requires excellent positioning skills and microscopic anatomical exploration skills. In addition, it is not possible to avoid re-protrusion of the nucleus pulposus compared to conventional open-heart surgery. The probability of such reherniation is about 5%. Theoretically, there is little impact on the stability of the spine because there is no excessive removal of unaccountable muscle and bone. From this point of view, long-term observation will reveal that it should have a lower recurrence than conventional open surgery or discoscopic surgery. The figure below shows the nerve roots in the spinal canal well revealed under spinal endoscopy, while patients suffering from unilateral lower extremity radiating pain are often caused by compression of the nerve roots by the herniated nucleus pulposus.