Could be a tendon : That is rubbing against a retinaculum or popping against bone....
Answered 6/29/2013
5k views
Many reasons: Possible air in joint, tendon or ligament out of position, arthritis and many more. X-ray would give a clue.
Answered 7/1/2013
5k views
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3 doctors weighed in across 2 answers
2 doctors weighed in across 2 answers
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