Myth: Cracking Your Knuckles Will Give You Arthritis

It’s a common belief that cracking your knuckles will lead to arthritis. Many people are told by parents or caregivers to stop cracking their knuckles because it can cause permanent damage to the joints. The noise that accompanies knuckle cracking, which is produced by the release of gas bubbles in the synovial fluid, has long been associated with negative health consequences. It’s a widespread myth that this repetitive action can wear down the joints and cause the painful condition known as arthritis.

Research has shown that cracking your knuckles does not cause arthritis. The sound produced during knuckle cracking comes from the release of nitrogen gas bubbles in the synovial fluid of the joints, and there is no scientific evidence that this action leads to joint damage or arthritis. In fact, a study published in the Journal of the American Board of Family Medicine found no increased incidence of arthritis in people who cracked their knuckles regularly. The myth likely originates from the association of joint sounds with discomfort or disease, leading to fears that such actions could cause long-term harm. However, cracking knuckles may be harmless for most people, though it can be a nuisance for others. It is important to note that while habitual knuckle cracking does not lead to arthritis, excessive or forced movements can still strain the joints and soft tissues. Some studies suggest that knuckle crackers may experience hand swelling or reduced grip strength in later life, but these effects are not linked to arthritis specifically. In any case, joint health should be maintained through proper exercise, stretching, and nutrition.