What Is Trigger Finger?

By albert

Reviewed: Dr. Gromatzky

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Trigger finger, sometimes called trigger thumb or stenosing tenosynovitis, is a condition in which tendons responsible for bending a finger do not work as they should. When this happens, it becomes difficult to bend the finger. Although trigger finger can affect any finger, in most cases, it occurs in the thumb or the ring finger.

Trigger finger causes a locking sensation, stiffness, or pain in the affected finger. The condition occurs as a result of inflammation or thickening of the tendon. Women, people with arthritis, diabetics, and those whose work or other regular activities are straining to the hands are at a higher risk of getting trigger finger. The condition worsens in the morning.

1. Symptoms of Trigger Finger

Symptoms of trigger finger usually start after a period of heavy use of the hand, especially in activities whereby the fingers are used extensively. The initial symptoms may include a lump at the base of the finger on the palm side. This can make the base of the finger sensitive to pressure. This may be followed by other symptoms including reduced finger movement, pain, a popping sound when you try to stretch the finger, and a locking sensation.

These symptoms tend to worsen after a period of inactivity such as when you wake up in the morning. This may cause the finger to remain bent similar to a finger pulling a trigger.