One of the development trends of modern surgery is minimally invasive, and intervertebral foraminoscopy is the most advanced minimally invasive technique for the treatment of lumbar disc herniation and lumbar spinal stenosis, with the following advantages: 1. Less trauma. The incision of intervertebral foraminoscopy is only 0.7cm (other minimally invasive surgery or open surgery incision varies from 2-5cm), no muscle stripping, less damage, bleeding <10ml, no incision drainage tube, and mild postoperative pain. It is easier to remedy in case of prominent recurrence and reoccurrence, and can even remedy the problems of open surgery. 2. Safer. Firstly, other minimally invasive surgery or open surgery are endotracheal intubation with general anesthesia, and general anesthesia itself interferes with the internal environment and is quite dangerous, while intervertebral foraminoscopy is done under local anesthesia, which avoids the risk of general anesthesia and allows many patients with age-related diseases who cannot tolerate general anesthesia to undergo surgery. Second, in other minimally invasive or open surgeries, the surgeon may accidentally injure the nerve root without knowing it, and the patient is unable to give feedback because of general anesthesia, and when the patient is found to be paralyzed by the anesthesia, it is too late. Third, the intervertebral foramoscopic camera system magnifies the surgical field approximately 80 times, so that the herniated disc tissue and the normal nerve tissue are clearly distinguishable, thus effectively "eliminating the enemy and protecting the good guys". 3.Faster recovery. The lumbar circumference can be brought to the ground 3 days after the intervertebral foramenoscopy surgery to avoid bedside complications and resume normal life after 1 month.