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Are cracking joints a sign of arthritis?

October 13, 2020

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Q. My knees have been cracking for a long time, but lately I've noticed my ankles and elbows sometimes crack and pop. Is this a sign of early arthritis?

A. The good news is that the usual painless joint cracking or popping does not represent an early form of arthritis, nor does it cause joint damage (despite what our mothers told us about cracking our knuckles). The cracking sound appears to come from tendons or muscles moving over the joint or from the popping of nitrogen bubbles normally found in the joint space.

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