Houston Methodist. Leading Medicine

Hand FAQ


My uncle is 54 years old and he was just diagnosed with something called trigger finger. His ring finger bends in to his hand and when he tries to straighten it, he says it feels like it is snapping or popping. His doctor wants to do surgery. Are there any specific risk factors for this or does trigger finger happen at random?


Trigger finger is caused by the thickening of rings that surround the tendons that move the fingers from straight to bent and back. The rings are like a tunnel through which the tendons slide back and forth. If the rings thicken, they begin to put pressure on the tendon and sometimes block it from moving. If the person with the trigger finger manages to move it, the tendon may "catch" on a ring, causing that pulling or snapping feeling. As for risk factors, it's been found that more women develop trigger finger than do men and people with chronic health issues, like rheumatoid arthritis, diabetes, hypothyroidism (underactive thyroid) seem to be at a higher risk of developing the condition. As well, if you constantly have a grip on an instrument, be it a musical instrument or a tool, the constant bending of the finger could contribute to developing trigger finger. Ryan Will, MD, and John Lubahn, MD. Complications of Open Trigger Finger Release. In Journal of Hand Surgery. April 2010. Vol. 35. No. 4. Pp.594-596.

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