目的：报道临床所见腰骶神经根异常综合征。方法：５２３例诊断为腰椎间盘突出症而行手术治疗中发现１４例为腰骶神经根变异而致病，（占２６８％）。予以手术治疗。结果：通过手术所见，腰骶神经根变异，解剖上可分为：１腰骶神经根畸形，２腰骶神经后根节异位。结论：腰骶神经根异常综合征，临床不多见，术前影像学检查确诊率较低，术中应注意去除一切对异常神经根造成嵌压的因素，包括轻度的椎间盘突出，小关节内聚、增生、黄韧带肥厚、退变等可收到较好的临床治疗效果 Objective: To report the clinical findings of lumbosacral nerve root abnormalities syndrome. Methods: Among 523 cases diagnosed as lumbar disc herniation, 14 cases found pathological changes of lumbosacral nerve root (268%). Surgical treatment. Results: Through the surgical findings, lumbosacral nerve root variability, anatomy can be divided into: 1 lumbosacral nerve root deformity, 2 lumbosacral nerve posterior root segment ectopic. Conclusions: The lumbosacral nerve root abnormalities syndrome is rare in clinical practice. The diagnosis rate of preoperative imaging examination is low. All the factors that cause embedding pressure on abnormal nerve roots should be removed during operation, including mild disc herniation and small joint Cohesion, hyperplasia, yellow ligament hypertrophy, degeneration and so on can receive better clinical treatment effect