Trigger Finger – Causes, Symptoms & Treatment

Trigger finger is a condition that causes a person’s finger to get “stuck” in a bent position. This condition is caused by a narrowing of the sheath that surrounds the tendon in the affected finger, making it difficult for the tendon to move freely.

Our hands are most complex organs in our bodies. Their anatomy and function is so sophisticated that no other organism on the planet has an equivalent. However, with this complex function come a number of diseases that can compromise it. Our hands are made up of skin, muscles, tendons, ligaments, bones, nerves and blood vessels, each of which have their specific diseases that result in certain disorders and manifestations.

What is a Trigger Finger and What Causes It?

A trigger finger, also known as stenosing tenosynovitis, is a condition in which one of the tendons in the finger becomes inflamed and causes the finger to get stuck in a bent position. It is often accompanied by a snapping or popping sensation when the finger is flexed.

The exact cause of trigger finger is unknown, however, it is thought to be associated with repetitive activities or manual labor that is done with the hands, such as typing on a keyboard or playing a musical instrument. It can also be caused by medical conditions such as rheumatoid arthritis, diabetes, or gout. Treatment for trigger finger includes rest, anti-inflammatory medications, and in more severe cases, surgery.

It is uncertain what precisely causes trigger finger, though it is thought to be caused by persistent irritation of the tendon sheath in those who work with their hands regularly, such as welders and those using metal shears and scissors. Individuals with diabetes have a higher risk of developing the issue than those without. Additionally, other medical conditions are linked to trigger finger, including:

  • Psoriasis
  • Hypothyroidism
  • Rheumatoid arthritis
  • Sarcoidosis