Prior to foraminoscopy, lumbar “mini-open” or posterior “discoscopic” surgery was the mainstay of treatment for disc herniation. However, both “mini-opening” and “discoscopy” only removed the herniated disc, but could not deal with the main disc, and therefore could not reverse the degenerative process of the disc itself, resulting in recurrence or reoccurrence of the herniated disc. In the past, it was thought that the scar of the first surgery affected the revision of the minimally invasive surgery again, and generally the second surgery would be a complete internal fixation fusion surgery, which is commonly known as a nail. However, the advent of foraminoscopy has partially changed this situation, as foraminoscopy uses a completely different surgical approach, entering the foramen laterally and removing the herniated disc, an approach that was not used in previous surgeries, so there is no surgical scarring. The big problem of postoperative revision is solved by a local anesthetic procedure.