Tendinitis of the ring finger generally refers to narrow tendinitis of the ring finger. In the early stage of tendinitis, tendinitis can be cured on its own by localized braking, resting and hot compresses. In the late stage, if nodules appear, certain treatments are needed, including conservative treatment and surgical treatment. Stenosing tenosynovitis occurs in the wrist and finger joints. It is most common in people who use their wrists and knuckles frequently. Tendovaginitis is a self-limiting disease. Some patients can recover on their own after sufficient rest (especially during acute attacks), braking, hot compresses and other treatments, but they are prone to recurrence. In the late stage of tenosynovitis, nodules are usually formed and the pain is obvious, which can be treated by immobilization with braces, physiotherapy and topical medication (diclofenac diethylamide latex), closed treatment such as injecting hormone drugs and local anesthetics into the lesion area, and so on. If the above treatments are not effective or recurrent, surgical treatment is required. The use of medications should be in accordance with the doctor’s instructions. Tendinitis of the ring finger is recommended to be treated under the guidance of specialists, and the above medications should be used in a standardized and reasonable manner under the guidance of professional physicians.