Intervertebral foraminoscopy is suitable for the following groups: 1, patients with common clinical back pain, in fact, patients with discogenic back pain. This kind of patients, as long as the diagnosis is clear, the target disc responsibility gap is clear, the effect of performing intervertebral foraminoscopy is very accurate; 2, postoperative recurrence, surgical scar and structure unclear patients. Because before the maturity of intervertebral foraminoscopy technology, a large number of patients given conventional open surgery, or conventional internal fixation surgery, are prone to recurrence after surgery, or degeneration of adjacent segments. In patients undergoing secondary surgery, the structure is more disturbed and the risk of surgery is relatively high if reopening surgery is performed. However, if the intervertebral foramen technique is performed, avoiding the scar, avoiding the original surgical area, the relative surgical risk is reduced; 3, cauda equina syndrome patients: cauda equina syndrome patients with very intense compression, avoiding the further harassment of the cauda equina nerve after conventional surgery, the operation is performed from the intervertebral foramen approach, avoiding the nerve root extrusion, this operation is relatively safer and the efficacy is more accurate; 4, for open surgery and Elderly patients who cannot tolerate general anesthesia: Nowadays, as China enters an aging society, there are more and more elderly patients, many of whom have poor cardiopulmonary function and often cannot tolerate general anesthesia, so minimally invasive foraminoscopic surgery can further reduce the risk of anesthesia and obtain the same relatively stable efficacy; 5, young and middle-aged patients: young and middle-aged patients are often not recommended to perform intervertebral fusion in clinical practice, and foraminoscopic Surgery to relieve the patient of neural compression is the primary treatment in the ladder treatment principle of disc therapy. The intervertebral foraminoscopic treatment, young patients can often obtain relatively stable results and relieve the time of intervertebral fusion of patients.