本组患者年龄21～48岁,其发病诱因为负重过劳1例,有上感受凉史7例;多呈急性或亚急性发病,病后1～6天病变肢体即出现下运动神经元性不同程度的瘫痪,肌力及肌张力低下(轻瘫及重瘫各四例)。主要表现为瘫痪胶体呈悬挂状态,不能内收外展及旋前旋后,且患肢有程度不同的感觉障碍, This group of patients aged 21 to 48 years old, the incidence of incentives for one case of overload and overloading, there is a sense of the history of cold in 7 cases; mostly acute or subacute morbidity, 1 to 6 days after disease lesions appear lower motor neurons Different levels of paralysis, muscle strength and muscle tone (paralysis and severe paralysis in four cases). Mainly paralytic colloid was suspended state, can not be adducted adduction and pronation, and the limbs have varying degrees of sensory disturbance,