When to worry about locking or catching finger with trigger finger

Trigger finger develops when a tendon and its surrounding tunnel do not glide smoothly. You may feel tenderness near the base of the finger or thumb, stiffness after rest, a click as the finger moves, or a need to use the other hand to straighten it. Most people with Trigger Finger notice locking or catching finger. The problem may affect one finger or more than one, and symptoms can vary through the day.

Reduce activities that repeatedly grip, squeeze, or pinch, while still moving the finger gently through a comfortable range. Do not force a locked finger straight. A clinician may examine the tendon, recommend a splint, or discuss other treatment if symptoms interfere with work, sleep, or daily tasks. Record when catching occurs and whether swelling, tenderness, or reduced movement is changing.

Arrange an assessment if catching keeps returning, the finger cannot fully bend or straighten, pain is persistent, or everyday use is becoming difficult. Seek urgent help after an injury if the finger looks deformed, becomes numb or pale, or cannot move. Sudden redness, warmth, marked swelling, or fever also needs prompt medical attention because these features may point to a problem beyond routine tendon irritation.

Ask whether the tendon is catching at the pulley, whether a splint could help, which movements to limit, and what treatment is suitable if the finger remains locked. Mention any diabetes, inflammatory joint disease, recent injury, or previous hand treatment.