This is often caused by repetitive use of hands or from other causes of inflammation to the long tendons within the thumb/finger whereby the finger locks into a flexed position.
Trigger finger is characterised by painful locking or “triggering” when bending the fingers or thumb. There is often tenderness over the joint at the base of the thumb/finger as well as swelling. This can also impact your ability to straighten your finger.
If you are experiencing any of these symptoms, book an appointment.