Mayo Clinic Health Manager
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By Mayo Clinic staffThe first and most common symptom of thumb arthritis is pain. Pain occurs at the base of your thumb when gripping (which applies the most force to this joint), grasping, pinching an object between your thumb and forefinger, or applying force — such as when turning a key, pulling a zipper or opening a jar. Eventually, you may even experience pain when not using your thumb.
Signs and symptoms may include:
- Pain at the base of your thumb
- Swelling, stiffness and tenderness at the base of your thumb
- Decreased strength when pinching or grasping objects
- Decreased range of motion
- Enlarged, bony or out-of-joint appearance of the joint at the base of your thumb
The pain, stiffness and decreased movement may be minimal or significant, depending on the severity of the condition and how you use your hands in work and recreation.