A member asked:

Base of my thumb started swelling up and got painful after i was painting last nov 2021. it has continued to be swollen at the base and very painful when moving it any activity with it. also has x-ray and mri which is clear. what could be causing?

A doctor has provided 1 answer
Dr. Hiep Le answered

Specializes in Nephrology and Dialysis

A persistently swollen and painful thumb for almost one year without abnormal finding by MRI is quite unusual so I wonder you suffer from reflex sympathetic dystrophy syndrome. When you have RSD, your sympathetic nervous system gets mixed signals. It turns on after an injury, but doesn’t turn back off. This causes a lot of pain and swelling at your injury site.

Answered 10/16/2022

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