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If you pull on the joint capsule, the walls of the capsule expand and lower the pressure on the fluid inside it. The gas then comes out of solution suddenly and forms bubbles, which then pop making a popping noise.

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Q: What causes the sound of cracking knuckles?
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Related questions

What do crackling knuckles sound like?

Cracking knuckles sound like cracking knuckles


What does cracking your knuckles do to the body?

Well Cacking our knuckles Some people thing it causes arthritus, but actually the sound is caused by a various form of gasses that are being let off by the cracking sound, cracking your knuckles can also make your knuckles swell or puff, So it doesn't do anything to your BODY but it does do something to your knuckles!


What is the sound of knuckles cracking?

The sound of knuckles cracking is caused by gas bubbles rapidly collapsing in the synovial fluid in the joints. This release of gas creates a popping or cracking sound.


What do you call the fear of the sound of knuckles cracking?

knucklephobia


Is cracking your knuckles bad?

No. The cracking sound is caused when the small bubbles of air in between your joints pop. It does not cause any problems. People who say that is causes damage are passing on a myth.


What really happens when you crack your knuckles?

Cracking your knuckles releases a gas that naturally forms in your joints. Cracking them isn't bad for you unless it causes pain.


Is cracking your knuckles just releasing gas?

Yes, when you crack your knuckles, you are actually causing a sudden release of gas bubbles that have formed in the synovial fluid around your joints. This release creates the popping sound that is commonly associated with knuckle cracking.


Can you get arthrites from cracking your knuckles?

Cracking your knuckles does not directly cause arthritis. The sound is produced by gas bubbles popping in the fluid within the joint. However, repetitive and excessive knuckle cracking can lead to joint damage and weaker grip strength over time.


Why is cracking your knuckles politically incorrect?

The sound of knuckles being cracked is unpleasant to some people (like the sound of a finger nail being scraped across a chalk board), thus in polite company one would normally refrain from cracking your knuckles.


Will your knuckles get big if you crack them?

No, cracking your knuckles does not cause them to get bigger. The sound you hear when cracking your knuckles is the release of gas bubbles in the joint, and it does not have any long-term effects on the size of your knuckles.


What causes the audible clicking with TMJ?

Air bubbles, same as in cracking knuckles...


Does cracking your knuckles push air out of the joint?

When you crack your knuckles, you are not pushing air out of the joint. The popping sound is caused by the movement of the joint creating temporary cavitation within the synovial fluid.