Osteoarthritis is the most common joint disorder in the U.S. More than 30 million Americans suffer from it.
It’s caused by the breakdown of cartilage between joints, which acts as a cushion. It’s often called “wear-and-tear” arthritis. That’s because it strikes when the cartilage wears down from overuse or injury. Bone rubs against bone causing inflammation, swelling, and pain. It can be debilitating.