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Sports Medicine

What causes cracking bones during workouts

09/03/2008

Question:

what causes cracking bones during work outs and also sometimes regular everyday activities. It seems i talk to several people that have this same problem.

Answer:

Bones do not crack.  Rather it is the snapping of ligaments and tendons over joint prominences that cause the "crack" sensation.  If this is not painful, it is usually a normal occurrence that does not cause additional problems. 

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Response by:

Charles Webster, MD
Assistant Professor
College of Medicine
University of Cincinnati