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A 56-year-old female asked:

What is the difference between a spur and a cyst when related to abnormal bone knot/growth on thumb side of wrist? i have smooth knot on my wrist.

1 doctor answer1 doctor weighed in
Dr. Katharine Cox
Pediatric Emergency Medicine 45 years experience
Spur/cyst: A spur is an overgrowth of bone and is often part of aging. A cyst is an area where there is no bone or a deficiency of bone . It is often something you are born with. Cysts can also form along the tendons in your wrist. I hope this helps. All the best.

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Last updated Jul 26, 2015

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