Objective To observe the effects of ultrashort wave, medium frequency electrotherapy and infrared rays herb-pad therapy on lumbar disc hernia and study the change of material of herniation of nucleus pulposus. 目的观察腰椎间盘突出症经超短波、中频电和红外线中药外敷治疗后的临床疗效,及椎间盘突出物治疗前后的变化。