De Quervain's Syndrome, also known as de Quervain's tenosynovitis or de Quervain's disease is a painful condition caused by inflammation of tendons in the wrist and lower thumb. When the swollen tendons rub against the narrow tunnel they pass through, it causes pain at the base of your thumb. The pain migrates up the wrist and into the forearm.
It gets worse with thumb movement or grip. It is especially bothersome when trying to open large-mouth jars such as pickle jars. If left untreated, even simple actions such as lifting a coffee mug or peeling vegetables may become impossible. The pain is crescendo in nature often preventing the ability to continue to hold the object.
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