Surgical treatment of tenosynovitis may result in sequelae such as scarring and abnormal sensation, which are rare in clinical practice. Tendovaginitis is an acute or chronic inflammation caused by excessive friction between the tendon sheath, which wraps around the tendon tissue, and the tendon. Surgical treatment is effective and mature, and sequelae are rare. 1. Keloid hyperplasia: keloid hyperplasia is mainly due to individual differences, commonly found in patients with scarred body or infected wounds, if the area of keloid hyperplasia is not large, it can be left untreated, if it is large enough to affect the aesthetics and normal life, it can be treated accordingly. 2. Sensory abnormalities: If the tendovaginitis surgical process damage or pulling stimulate the surrounding tissues such as nerves, may cause local numbness or sensory abnormalities, mainly manifested as decreased sensation, sensitivity, etc., the majority of cases can be gradually recovered on their own, the recovery period of three months to half a year. After surgical treatment of tenosynovitis, we should follow the doctor’s instructions to carry out functional exercises and rehabilitation therapy to promote recovery.