What is Trigger Finger and What Causes It?

trigger finger

What Is Trigger Finger?

If you wake up with your finger stuck in a bent position, feel a pop when you try to straighten it or have to use your other hand to open your finger, you may have Trigger Finger.

What Causes It?

Trigger finger or trigger thumb happens when the tendons in your finger or thumb become inflamed. Tendons are bands of tissue that connect muscles and bones. The tendons that bend your fingers travel through your palm and into your fingers. They move through a covering called a “sheath” and pass through a series of pulleys that hold your tendons close to your finger.

If your tendons are inflamed and there is swelling around them, they can get stuck in the sheath or as they goes through the pulley. When this happens, bending the finger pulls the inflamed tendon through a narrowed sheath, making it snap or pop.

Looking for more information on how to treat your trigger finger? Download our Oval-8 ebook

How Do You Get a Trigger Finger?

Trigger finger can happen in response to “overuse” activities that require repeated gripping or pinching. It is more common in people whose work or other activities require gripping tools (such as a dentist or hygienist) or other repetitive tasks for long periods of time. Health conditions like rheumatoid arthritis and diabetes can also cause it. It’s also not uncommon for it to occur without a known cause.

Resting your finger is the first step in treating your trigger finger.  The Oval-8 Finger Splint can help limit your finger motion, giving your finger a chance to rest and heal. Oval-8 splints can be worn during the day and at night.

oval-8 finger splint for trigger finger





If your symptoms continue, your healthcare provider may also prescribe anti-inflammatories or a steroid injection. If your trigger finger still does not improve, surgery may be recommended.

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oval-8 finger splints for arthritis mallet finger trigger finger
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Our blogs are educational in nature and are not intended as a substitute for medical advice. Because your condition is unique to you, it is recommended that you consult with your health care provider before attempting any medical or therapeutic treatments. We are always happy to answer questions about products mentioned in our blogs, however, we cannot provide a diagnosis or medical advice.

4 comments on “What is Trigger Finger and What Causes It?

    1. Hi Karen,

      The Oval-8 Finger Splints can be purchased at ohmyarthritis.com and on amazon. They are not available at Walgreens.

  1. I have a small finger bent by Duputrenes Contracture to about 60’degrees. Will these splints help to stretch it so I can play the clarinet using that finger? If so, how and how long should I use it at a time? Your information does not mention Duputrenes as a condition, thus my inquiry. Than you for any advice.

    John Coyle

    1. Hi John, Thank you for reaching out to us about your finger condition. Unfortunately the Oval-8 Finger Splint is not intended to be used for Dupuytren’s Contracture and at this time we do not have any products available specifically for this condition. We are currently researching the possibility of offering post-surgery splints for Dupuytren’s in the near future. Please read our blog https://www.blog.ohmyarthritis.com/i-cant-straighten-my-fingers-dupuytrens/ for more information on Dupuytren’s. You may also want to visit this link on our website https://www.ohmyarthritis.com/Learn/Helpful-Resources/ to find a hand specialist near you who can make certain you have a proper diagnosis and treatment plan.

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