Extracorporeal shock wave treatment for tenosynovitis is effective and is performed once a week, 3-5 times a course of treatment. Tendovaginitis is a long-term wear and tear of tendons and tendon sheaths, resulting in inflammatory manifestations such as tendon sheath congestion and edema, and tendon compression symptoms, shock waves can change the cell membrane permeability of edematous tissue, accelerate cell metabolism, promote the inflammation and edema of tendon sheaths, shock waves can cause local mechanical damage to inflammatory lesions, and induce local vascular reconstruction, which can make the inflammatory factors absorbed by the blood vessels and discharged from the body This allows the inflammatory factors to be absorbed by the blood vessels and discharged from the body. This shows that extracorporeal shock wave is a new type of treatment between conservative treatment and surgical treatment, causing micro-injury to the tendon sheath lesion and promoting the inflammatory lesion to be discharged from the body through blood circulation, so it is effective for the treatment of tendon sheath.