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Cracking your knuckles doesn’t cause harm, so it shouldn’t be painful, cause swelling, or change the shape of the joint.
Real deal or wives’ tale: Knuckle cracking can cause harm, including arthritis? A Mayo Clinic hand surgeon’s answer may surprise you.
Contrary to popular belief, knuckle cracking isn’t a dangerous habit. Studies show that, done correctly, it doesn’t cause arthritis or joint enlargement.
Although cracking your knuckles regularly can be relatively harmless, it can also cause damage if it’s done incorrectly or too frequently. If you pull or crack your knuckles incorrectly, you can actually cause a ligament injury or even dislocate your fingers.
If you want to crack your knuckles, it's unlikely to cause you harm. But if you want someone else to stop cracking their knuckles, you'll need a better reason than telling them they're ruining their joints.
More specifically, knuckle cracking does not cause arthritis. Joint "cracking" can result from a negative pressure pulling nitrogen gas temporarily into the joint, such as when knuckles are...
Learn the facts and myths about cracking your joints. Know when to stop if joint cracking causes pain or knuckle popping becomes an unhealthy habit.
Question: If you have arthritis, can cracking knuckles / joints make it worse? Answer: No. However theoretically “knuckle – cracking” in patients with weak or damaged joints due to arthritis could potentially lead more easily to ligament injury or acute trauma to the joints.
The “popping” or “cracking” sound that happens when we crack your knuckles is caused by popping bubbles in your synovial fluid, which is responsible for lubricating your joints. When you pull your bones apart, there is a buildup of negative pressure, causing these bubbles to burst.
Why do knuckles pop? There are two theories that explain the popping noise, Dr. Behr says: All joints are bathed in fluid. When a joint is “cracked,” nitrogen bubbles are released, creating a popping sound. The movement of ligaments around the joint can also cause a popping sound. Does knuckle popping really bring relief?