Trigger finger - Definition

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Trigger finger is characterized by pains that manifest at the base of the finger, palm-side, when one moves the fingers, especially upon waking in the morning. The blockage of the finger that results, or is its origin, is due to the flexor tendons of the fingers, which are inflamed (generally a nodule progressively appears and prevents the tendon from sliding normally). Certain trigger fingers are caused by rheumatism, and in these cases joint stiffness appears rapidly.