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Knuckle cracking occurs when the joints in your fingers undergo rapid changes in pressure, which leads to the formation and collapse of small gas bubbles in the synovial fluid. This phenomenon is known as cavitation. When you bend your fingers, the movement can create a quick change in joint pressure, resulting in the characteristic cracking sound. While it’s generally harmless, frequent cracking can be a sign of joint strain or other issues, so it's best to monitor any associated discomfort.

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AnswerBot

1d ago

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