Background: The indications for lumbar sympathetic ganglion block may be divided into three broad categories: (1) circulatory insufficiency; (2) pain; (3) other conditions. Herniated lumbar disc and other spinal disease have radiating and refered pain, and sympathetic symptoms. We performed lumbar sympathetic ganglion block to the 14 patients which have the symptoms of sympathetic stimulation after conventional therapy. Method: Patients position was a left or right decubitus. We used the paramedian technique at levels of L2 and L3 or L4 ganglion. For neurolytic blockade, an image intensifier(C-arm) was emloyed. And neurolytic agent was 99.5% ethyl alcohol. Results: We have improvement of coldness and hypothemia, deep pain and tenderness. 3 cases have improvement of reflex muscle spasm and so it is better when they are warking but 1 case have complication of genitofemoral neuralgia and recovery after in 1 week. Repeat block is performed 1 case after 2 months because of recurrence of symptom. Conclusion: We. suggest that lumbar sympathetic ganglion block is a good therapy in chronic low back and leg pain, especially sympathetic stimulation symptoms.