Indications for intervertebral foramenoscopy surgery: 1, lumbar intervertebral disc herniation: due to the herniated intervertebral discs produce mechanical compression on the nerves, resulting in patients with lumbar pain, lumbar and leg pain or claudication. 2, lumbar intervertebral discogenic pain: that is, the intervertebral disc is mainly degenerated and aged, the protrusion is not obvious, the degenerated and aged intervertebral disc secretes some inflammatory mediators, which stimulate the sinusoidal spinal nerves or spinal nerve roots around the lumbar intervertebral discs, leading to neuroinflammatory reaction, lumbago or lumbar and leg pain, with recurring symptoms, and ineffective conservative treatment. At this time, the annulus fibrosus of the intervertebral disc may have been torn and other structural damage. 3, lumbar intervertebral foraminal stenosis: middle-aged and elderly patients with low back pain, due to joint synovial hyperplasia, hypertrophy of the ligamentum flavum, sclerosis of the intervertebral disc protruded, the disc is highly collapsed and other reasons lead to spinal nerve root access to the intervertebral foraminal stenosis, the nerve roots produce mechanical pressure or secretion of inflammatory mediators on the nerve roots to produce inflammatory damage, resulting in recurrent episodes of lumbar pain or low back pain for a long time. Specifically, it can be refined as follows: 1, lumbar disc herniation with severe symptoms, ineffective by strict conservative treatment or has caused acute neurological dysfunction, including paracentral and lateral herniated, ruptured and free discs, and the best indications are single-segment lateral herniation. 2. Although conservative treatment is effective, the symptoms recur quickly and recur more than twice, the symptoms are severe during the attack, affecting the work and life, and the history of the disease is more than half a year or more; or although the symptoms and signs are not very serious, the history of the disease is longer, the diagnosis is clear, and the patient has a request for surgical treatment. 3. Regardless of the history of the disease, once the nerve root paralysis damage occurs, such as bunion dorsiflexor muscle strength below grade 4. 4.Central disc herniation combined with cauda equina damage, such as urinary and fecal dysfunction, CT shows that the disc or posterior longitudinal ligament without obvious calcification. 5.Although the history, symptoms, and signs of disc herniation are not typical, CT, MRI, and imaging examinations such as discography, etc., find that there is a huge herniation of the intervertebral disc. 6.Disc herniation combined with lateral saphenous fossa or intervertebral foraminal stenosis. 7. Disc herniation with calcification of the herniated material. 8.Positive signs of nerve root compression, such as straight leg raising test (+), bunion extension test (+), weak knee or Achilles tendon reflex. 9. Imaging examination is consistent with clinical symptoms and signs. 10.Ineffective after 6~8 weeks of systematic conservative treatment. 11, Those who are willing to accept intervertebral foraminoscopic surgery and bear the risk of failure of puncture and need to be transferred to open surgery.