Overview
Rheumatoid arthritis, often called RA, is a chronic inflammatory disease that mainly affects the joints. In RA, the immune system attacks the tissue that lines the joints, which can lead to pain, swelling, warmth, and stiffness. Over time, ongoing inflammation may damage cartilage, bone, and joint shape. RA can also affect organs and tissues outside the joints in some people.
Key Symptoms
Common symptoms include joint pain, swelling, tenderness, and stiffness, especially in the morning or after rest. RA often starts in smaller joints such as the hands, wrists, and feet, and symptoms may appear on both sides of the body. Many people also feel fatigue, low energy, or a general sense of being unwell. Symptoms may come and go, with periods of worsening called flares.
Causes and Risk Factors
The exact cause of RA is not fully known, but it involves the immune system attacking healthy joint tissue. A combination of genetics, hormones, and environmental triggers may play a role. Smoking is a well-known risk factor, and some infections or exposures may be linked in certain people. Having a family history of RA can also increase risk.
Who Is Affected
RA can affect adults of many ages, including younger and middle-aged adults, and it is not limited to older people. It is more common in women than in men. The condition occurs around the world and in many ethnic groups. Severity and symptoms can vary widely from person to person.
Prevention
There is no known way to fully prevent RA. Avoiding smoking may lower risk and may also help reduce disease severity if RA develops. Protecting general health through regular activity, sleep, and management of other medical conditions can support overall well-being. If early symptoms appear, getting medical evaluation promptly may help reduce later joint damage.
Diagnosis and Tests
Diagnosis usually involves a medical history, physical examination, blood tests, and imaging such as ultrasound, X-ray, or MRI. Blood tests may look for signs of inflammation and certain antibodies that can be linked with RA, but no single test alone confirms every case. A clinician also considers the pattern of symptoms, which joints are involved, and how long symptoms have lasted. Early referral to a specialist in joint diseases may be recommended.
Treatment Categories
Treatment often aims to reduce inflammation, control symptoms, protect joints, and maintain daily function. Care may include medicines that calm the immune system, pain-relief approaches, physical or occupational therapy, and support for movement and joint protection. Some people may need changes in treatment over time depending on disease activity and side effects. In advanced cases with severe joint damage, surgery may be considered.
Living With It
Living with RA can involve balancing activity and rest, planning around flare-ups, and getting support for work, family, and mental well-being. Stiffness and fatigue can affect daily routines, but tools, splints, and activity adjustments may help some people stay independent. Follow-up care is important because RA can change over time and treatments may need monitoring. Support groups or counseling may also help people cope with the emotional impact of a chronic illness.
Diet and Lifestyle
No single diet cures RA, but a balanced eating pattern can support general health and help with energy, heart health, and weight management. Regular low-impact movement, such as walking, stretching, or water-based exercise, may help maintain joint flexibility and muscle strength. Not smoking is especially important. Rest, stress management, and pacing activities may also help during periods of worse symptoms.
When to Seek Medical Care
Seek medical care if you have joint pain, swelling, or morning stiffness that lasts for weeks, especially if the same joints on both sides of the body are affected. Also get checked if fatigue, fever, weight loss, or reduced ability to use your hands or walk is interfering with daily life. People with known RA should seek care if symptoms suddenly worsen, new joints become involved, or treatment side effects are suspected. Prompt care matters because untreated inflammation can lead to joint damage.