Tenosynovitis refers to a non-infectious inflammation of the tendon and its surrounding sheath, caused by repetitive stretching of the tendon. This inflammation can lead to local swelling, exudation, and even adhesions. In severe cases, the sheath may press on the tendon, resulting in symptoms of trigger finger.

If tendinitis occurs, the early symptoms are mild and can be treated conservatively, such as with rest, immobilization, topical non-steroidal anti-inflammatory and analgesic medications, and even localized injection treatments. If symptoms are severe and the compression is significant, surgery may be required to remove the constricting sheath to relieve symptoms.

(Please use medication under the guidance of a doctor)