Trigger thumb is a common condition that usually begins in middle-age or later. Trigger thumb is also known as trigger finger because it can occur in any finger. Trigger finger causes a finger to get stuck in a bent position and then snap straight. The finger may also not work correctly and cause pain.
Trigger finger occurs when the tendon that helps bend the finger cannot glide easily. Tendons are thick cords that attach muscles to bones. Each tendon is covered with a protective layer called a sheath. If the sheath becomes irritated or inflamed, then the tendon will not work properly, and the finger will not bend as easily as it should.
The exact cause of trigger finger is not known. Trigger finger is more likely to occur in people with arthritis, people who have surgery for carpal tunnel, people with diabetes, and women.
Trigger finger is diagnosed by an examination of the hand. Treatment can include steroid injections and surgery. Trigger finger usually does not come back after a successful injection or surgery.
If you or a family member has been diagnosed with trigger finger, talk to your doctor about the most current treatment options. Support groups are also good sources of support and information.