Currently, microscopic discectomy is performed as a minimally invasive surgery, thus reducing impact of so-called conventional open discectomies. Although more technically demanding, discectomy with full endoscopy made possible a significant reduction of surgery invasive impact, thus making possible to broaden the field of endoscopic surgery indications. This study is based on hypothesis that complete endoscopic discectomy offers several advantages over traditional microscopic discectomy, including a smaller skin incision and therefore fewer scars and less muscle damage, lower infection rate, less blood loss, less painful post-operative recovery and shorter hospital stay length.