Can trigger finger (stenosing tenosynovitis) of the thumb be treated with a corticosteroid injection?

Tenosynovitis of the thumb can be treated with corticosteroid injections; however, specific treatment plans should be determined by a physician based on the individual patient's condition. Corticosteroid injections mainly involve the administration of glucocorticoids and local anesthetics directly into the affected tendon sheath to effectively relieve pain and restore normal thumb movement. It should be noted that generally only one to two injections are required, and these injections may cause significant damage to local tissues and are associated with a high recurrence rate. Therefore, patients should fully understand the benefits and risks associated with corticosteroid injections and undergo treatment only under the guidance of a physician. Additionally, patients should ensure adequate rest in daily life, avoid prolonged thumb activity, and undergo regular medical checkups.