Trigger Finger

What Is Trigger Finger?

Trigger finger, medically known as stenosing tenosynovitis, is where one of your fingers gets stuck in a bent position and may snap when straightened, like pulling and releasing a trigger. It happens when inflammation narrows the space within the sheath surrounding the affected finger’s tendon.

Common Signs and Symptoms

• Clicking or popping sensation when moving the finger

• Pain or stiffness, especially in the morning

• Finger locked in a bent position

• Tenderness or a small lump at the base of the finger

Most Frequently Affected Fingers

Trigger finger can affect any finger, but it most commonly involves:

• The ring finger

• The thumb (also called “trigger thumb”)

• The middle finger

What Causes Trigger Finger?

The condition is often caused by repetitive gripping, inflammation, or underlying health conditions. You may be at increased risk if you:

• Have diabetes or rheumatoid arthritis

• Perform work or hobbies requiring repetitive hand use

• Are between ages 40 and 60

• Are female (trigger finger occurs more often in women)

How Is Trigger Finger Treated?

Nonsurgical Options

Most cases improve with conservative care:

• Rest and activity modification

• Splinting the affected finger, especially at night

• Nonsteroidal anti-inflammatory drugs (NSAIDs)

• Steroid injections to reduce tendon sheath inflammation

Surgical Treatment

If nonsurgical treatments don’t work, a minor outpatient surgery may be recommended. The goal is to release the tightened portion of the tendon sheath, restoring smooth motion.

When to See a Specialist

If your finger is locking, painful, or affecting your daily tasks, don’t wait. Early treatment can often prevent worsening and avoid surgery altogether.