A lumbar posterior apophyseal ring separation (PARS) is characterized by the detachment of bony fragments from the posterior edge of the lumbar vertebral endplate, leading to protrusion into the spinal canal. In recent years, endoscopic surgery has gained increasing popularity in the management of PARS because it minimizes damage to surrounding healthy tissues and facilitates faster postoperative recovery. In this case, full endoscopy was performed using a transforaminal approach. The author presents the surgical technique of full-endoscopic discectomy combined with PARS resection.