Myth: Cracking Your Knuckles Causes Arthritis

Many people believe that cracking your knuckles can cause arthritis, especially in the joints of the fingers. This myth is commonly perpetuated by parents, doctors, and even peers, suggesting that the habit of cracking knuckles will lead to long-term damage and degenerative conditions like arthritis.

Cracking your knuckles does not cause arthritis. The sound that occurs when cracking knuckles comes from the release of gas bubbles from the synovial fluid in the joints. Studies, including a well-known study by Dr. Donald Unger, have found no correlation between cracking knuckles and the development of arthritis or other joint diseases. In fact, while it may be annoying to some, cracking knuckles is generally harmless. It may even have a temporary feeling of relief or relaxation in the joint due to the release of pressure. However, while it doesn't cause arthritis, repetitive knuckle cracking could lead to other problems, such as reduced grip strength or joint swelling if done excessively over long periods. But the fear of arthritis is unfounded, and the habit is generally not dangerous for healthy joints.