Trigger finger is caused by swelling of one of the tendons that run along your fingers and thumbs. The precise reason why this occurs isn't fully understood.
The swelling makes it difficult for the affected tendon to slide through its membrane (tendon sheath), causing the pain and stiffness associated with trigger finger. The swelling can cause a section of the tendon to form a small lump (nodule) at the base of the affected finger or thumb.
If a nodule does form, the tendon can get trapped in the tendon sheath, causing the affected finger or thumb to become momentarily stuck in a bent position. The affected tendon may then suddenly release your finger like the release of a trigger.
Local commissioning policies are in place for this condition
Please be aware that there are local commissioning policies in place for this condition. This means that certain treatments may not be available to you on the NHS.
Please click here for more information.
Selfcare and more information
Waiting for a specialist opinion
What support is available?
“This website is still under development.
Please bear with us as we add new content."