Osteoarthritis (often called OA) is a condition of the joints affecting almost everyone as they get older. Around 8 out of 10 people over the age of 50 are affected, but younger people– even teenagers – may develop it.
Most people are likely to experience some pain and mobility problems.
An early diagnosis can help slow its progression and a lot can be done to ease the symptoms.
Rheumatoid arthritis is an autoimmune disease. This means that your immune system – which usually fights infection – attacks the cells that line your joints by mistake, making them swollen, stiff and painful. Diagnosing rheumatoid arthritis quickly is important because early treatment can help stop the condition getting worse and reduce the risk of further problems such as joint damage.