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A member asked:

When my thumb is bent in a certain position it shakes uncontrollably. the shaking is at its worse when i am typing on my phone with my thumbs. there is no pain and no shaking at rest. my father has parkinsons. thoughts?

A doctor has provided 1 answer

This could be due to several different things but most likely is possibly that you have trigger finger. This would be more likely if you complained of a locking and catching sensation at times when bending as well. I would have your primary care examine your thumb and the rest of you to evaluate further.

Answered 3/2/2021

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