My son always cracks his knuckles. Can it affect him later in life?
The medical literature isn't completely clear on this. The answer may depend on the frequency of the knuckle cracking. Although it's generally not shown to cause arthritis, as some people have thought, habitual knuckle cracking may result in some hand swelling and impairment later in life.
Reviewed by: Steven Dowshen, MD
Date reviewed: October 2009
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