本文叙述了铅引起的临床型从业临床型末梢神经损害的诊断方法及其局限性。临床型末梢神经损害其特征是运动神经障碍,多累及上肢,典型症状是伸肌麻痹(腕下垂),感觉障碍呈不定型。诊断其本依靠临床神经病学的观察法。辅助诊断方法有肌电图检查、肌肉活检、腓腹神经活检、神经传导速度测定等,以肌电图检查较敏感。可观察到神经原性肌电图变化:要靜时自发纤维电位出现、肌肉收缩时运动单位减少、长持 This article describes the diagnosis of clinical-type clinical peripheral nerve damage caused by lead and its limitations. Clinical peripheral nerve damage is characterized by motor neurological disorders, involving more upper limbs, the typical symptoms are extensor paralysis (wrist drooping), sensory disturbances were unshaped. The diagnosis depends on clinical neurology observations. Auxiliary diagnosis of EMG examination, muscle biopsy, peritoneal nerve biopsy, nerve conduction velocity measurement, to EMG examination more sensitive. Neurogenic EMG changes were observed: spontaneous fibrillation potential to appear when the muscle contraction of motor units to reduce long-term holding