A member asked:

My thumbs on both hands cracks every time i move it and it doesn't hurt when i crack it can u tell me what this means when i move my legs they crack?

A doctor has provided 1 answer

Cracking: Cracking can come from the motion of joints; snapping sounds can emanate from motions of ligaments and tendons. If there is no associated pain or deformities, I am of the opinion that these sounds are not significant. If you have further concerns, consult a rheumatologist or orthopedic specialist for evaluation and reassurance.

Answered 10/2/2015

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