The treatment of tendovaginitis is as follows: apply local anesthetic to the painful area or local anesthetic to the area to be loosened; after applying local anesthetic, use the needle to loosen the tendon continuously, but do not loosen it too deeply, and the direction of loosening should be parallel to the tendon and not perpendicular to the tendon; if it is perpendicular to the tendon, it will cause tendon injury and produce tendon rupture, but parallel to the tendon will not cause tendon rupture. In the process of loosening, the tendon is moved appropriately to loosen the adhesions of the injured tendon sheath or tendon sheath hyperplasia or to pull off the tendon sheath to create enough space to promote the tendon activity to reduce the future popping and elastic fixation. Since the choice of acupuncture treatment tendinitis, must understand the principle of acupuncture, the principle of acupuncture: the front is a flat knife, each knife down the case as gently as possible, and try to avoid too deep, to prevent damage to deep tissue or vascular nerve.