foodexpert

@foodexpert · Oct 19, 2026

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Cracking your knuckles causes arthritis

Many people believe that habitually cracking your knuckles wears down the joints and leads to arthritis later in life. The popping sound comes from gas bubbles bursting in the fluid that lubricates the joints. Researchers have compared arthritis rates in people who often crack their knuckles with people who don't.

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health.harvard.eduHighly trusted · 94/100

The source from Harvard Health explains that cracking knuckles probably does not raise the risk for arthritis, based on studies comparing habitual knuckle-crackers and non-crackers.

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85% signal confidence

The highly trusted Harvard Health source indicates that cracking your knuckles does not cause arthritis, contradicting the claim. No community evidence was provided to support the claim. Therefore, the claim is likely false according to available evidence.

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Does Cracking Knuckles Cause Arthritis? Health Fact Check | FactFight