What is de Quervain tendinopathy

A fishing rod has rings to hold the lines in place. Our hands and wrists have tunnels to hold the tendons and nerves in place. De Quervain tendinopathy is a painful thickening of tendons on the thumb side of the wrist that help to move the thumb. It happens for no reason to healthy people doing healthy things.

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Figure: De Quervain tendinopathy