Osteoarthritis is the most common type of arthritis, affecting 8.5 million people in the UK. It develops gradually over time, causing joints to become stiff and painful. It can affect any joint but commonly affects the hands, knees, hips, feet and spine.

Osteoarthritis usually develops in people who are over 50 years of age, and it is more common in women than in men. It is commonly thought that osteoarthritis is an inevitable part of getting older, but this is not true. Younger people can also be affected by osteoarthritis, often as a result of an injury or another joint condition.