First of all, the role of small acupuncture, small acupuncture is soft tissue injury after tissue adhesions, or tissue dynamic imbalance through the release of adhesions to achieve soft tissue dynamic balance, so as to relieve pain and achieve the purpose of treatment. Sciatica is also caused by the injury of the soft tissues around the sciatic nerve and sciatic nerve adhesions during long-term life or labor, and the imbalance of the dynamic balance of the surrounding soft tissues, mainly the clinical symptoms of radiating pain in the lower limbs. Small acupuncture is precisely to release adhesions and achieve dynamic balance to achieve the purpose of treatment. The strength of releasing the adhesions is relatively greater, and the efficacy is faster in clinical practice.