What is osteoarthritis?
Your body is composed of more than 200 bones. On the ends of each of these bones is a smooth tissue called cartilage. Cartilage helps your bones slide past each other when you move.
As the years pass and you live an active life, cartilage can start to become thin and wear out. When it becomes too thin, your bones rub together, which is painful and can cause your joints to swell. This condition is called osteoarthritis.
Osteoarthritis is extremely common, affecting millions of Americans each year. You are more likely to get it if you are overweight, are a woman or if you are older than 65. Jobs that cause stress on your joints, such as those that require you to stand, walk or lift items frequently, can also put you at an increased risk for osteoarthritis.