Is someone at work always cracking their fingers? It can be really annoying… for those around them! But don’t try scaring them into stopping this habit.
According to Professor Maxime Dougados, a rheumatologist at the Cochin Hospital in Paris, it is quite harmless and doesn’t cause joint damage: that irritating little noise you can hear is simply caused by the bursting of the bubble of air separating the surfaces of the joints. It is just creating a kind of empty space within the joint. The same thing happens when we stretch.
However, if you hear a cracking sound in your knee or hip when walking, you should go and get an x-ray. This kind of cracking may be the sign of a cartilage condition such as arthrosis.
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