Why does your ring finger lock?

The locking of the ring finger, often referred to as "trigger finger," can occur due to inflammation or thickening of the tendons that control finger movement. This condition is typically caused by repetitive motion, injury, or underlying conditions like Arthritis. When the affected tendon gets caught in the tendon sheath, it can cause the finger to lock or catch when trying to extend or bend it. Treatment may include rest, splinting, or in some cases, corticosteroid injections or surgery.