Objective:To observe clinical therapeutic effect and mechanisms of acupuncture at Xi Xue（cleft points） combined with injection of Chinese medicine for treatment of 30 cases of lumbar intervertebral disc prolapse of blood stasis type.Methods:60 cases were randomly divided into a treatment group and a control group

30 cases in each.Patients of the treatment group were treated with acupuncture at L4-S1 Jiaji points（EX-B

2

）

Waiqiu（GB 36）

Weizhong（BL 40）

Xiaxi（GB 43）

combined with injection of Puerarin Injectio

and the control group were given routine acupuncture combined with injection of Puerarin Injectio into Ashi points.Changes of interleukin-6（IL-6） and hemorheologic indexes before and after treatment were investigated in the two groups.Results:In the treatment group

total therapeutic effect was significantly superior to（P

<

0.05） and the therapeutic course was significantly shorter（P

<

0.01） than that in the control group. After treatment the total score

the pain score for VAS

and the cumulative score for straight leg raising test in both groups improved significantly

and the improvement of the score for straight leg raising test and the total score in the treatment group was significantly superior to that in the control group（P

<

0.05）. IL-6 level

red blood cell ratio

K value of blood sedimentation equation

whole blood high shearing specific viscosity were improved after treatment in both groups

and improvement of red blood cell ratio

K value of blood sedimentation

IL-6 level in the treatment group was superior to that in the control group（P

<

0.05 or P

<

0.01）.Conclusion:The treatment group was superior to the control group in improvement of symptoms and signs

daily living ability

and the degree of pain alleviation

and the mechanism is possibly related with improvement of IL-6 level and hemorheologic indexes leading to elimination of radiculoneuritis.