Percutaneous endoscopic lumbar discectomy is getting popular technique as an alternative to conventional discectomy. This endoscopic surgery have many advantages such as less injury to muscle and soft tissue, less postoperative pain, and shorter operation time without general anesthesia and shortened hospitalization. We performed retrospective controlled randomized study from January 2008 to April 2015. Total 250 patients were treated by surgery (open microdiscectomy and endoscopic discectomy) during eight years. Age, sex, and operation level were not statistically significant difference about recurrent rate. Likewise, operation technique such as endoscopic discectomy or open discectomy were not statistically significant difference for recurrent rate.