Rheumatoid Arthritis Explained: Causes and Care

What rheumatoid arthritis is

Rheumatoid arthritis is an autoimmune condition. Normally the immune system defends the body against infection, but here it mistakenly targets the lining of the joints, called the synovium. This causes inflammation, which makes joints swollen, warm, painful and stiff. Over time, ongoing inflammation can damage the cartilage and bone inside a joint, leading to lasting changes and loss of function. It usually affects joints on both sides of the body, such as both hands or both feet, and often several joints at once. Because it is a whole-body condition, it can also cause tiredness, a general feeling of being unwell, and occasionally affect other areas such as the eyes, lungs or heart.

Symptoms and early warning signs

The classic feature is joint stiffness that is worst in the morning or after resting, often lasting well over half an hour. Joints, especially the small ones in the hands and feet, become swollen, tender and painful, and the swelling feels soft rather than bony. Many people feel unusually tired and run-down, sometimes before the joint symptoms are obvious. Symptoms can come and go in flares, with better and worse periods. Because early treatment protects joints, it is important not to dismiss persistent joint swelling and stiffness as simply getting older. If several joints are swollen and stiff for more than a few weeks, it is worth seeing a GP promptly for assessment.

How it is diagnosed

There is no single test that confirms rheumatoid arthritis, so diagnosis combines several pieces of information. A GP will examine the joints and ask about symptoms, then usually arrange blood tests. These may include markers of inflammation and antibodies such as rheumatoid factor and anti-CCP, which are often but not always raised. Imaging, such as ultrasound or X-rays, can show inflammation or early joint damage. Because early treatment matters so much, UK guidance encourages prompt referral to a rheumatology specialist when the condition is suspected. The specialist confirms the diagnosis, assesses how active the disease is, and starts treatment quickly to prevent joint damage from taking hold.

Treatments that change the course

Treatment aims to control inflammation, ease symptoms and stop joint damage. The mainstay is a group of medicines called disease-modifying anti-rheumatic drugs, or DMARDs, which calm the overactive immune system. If these are not enough, newer biological and targeted medicines can block specific parts of the immune response. Anti-inflammatory painkillers and short courses of steroids may be used to settle flares, though not as a long-term solution. Regular monitoring with blood tests keeps treatment safe and on track, aiming for remission or low disease activity. Physiotherapy, occupational therapy and, occasionally, surgery support joint function. Doses and combinations are tailored by the rheumatology team; this article does not give specific doses.

Living well day to day

Alongside medicines, self-care makes a real difference. Regular gentle exercise keeps joints moving and muscles strong, while balancing activity with rest during flares helps manage energy. Not smoking is especially important, as smoking worsens the disease and reduces how well treatments work. A balanced diet and a healthy weight ease strain on joints and support overall health. Occupational therapists can suggest aids and easier ways to do everyday tasks, protecting your joints. Because inflammation can affect the heart, blood pressure and cholesterol should be checked. Emotional wellbeing matters too; living with a long-term condition can be hard, and support groups, the rheumatology nurse and your GP can all help you cope.