Rheumatoid Arthritis: Symptoms, Causes, and Whole-Body Impact

How RA Affects the Body

Rheumatoid arthritis (RA) is a chronic autoimmune disease where the immune system mistakenly attacks the synovium—the lining of the joints. This triggers inflammation, thickening, and excess fluid, leading to pain, swelling, stiffness, and progressive joint damage. While it typically starts in the small joints of the hands, feet, and wrists, it can spread to larger joints like knees, hips, and shoulders. Beyond joints, RA is systemic: it can affect the skin, eyes, lungs, heart, and blood vessels.

Common Symptoms

• Joint pain, swelling, and stiffness—often worst in the morning or after inactivity
• Persistent fatigue
• Unintentional weight loss
• Low-grade fever
• Loss of appetite
• Anemia
• Skin rashes or rheumatoid nodules
• Eye inflammation (such as scleritis)
• Lung involvement (including interstitial lung disease)
• Increased cardiovascular risk

Diagnosis

Diagnosis combines clinical evaluation, physical exam, and lab tests. Blood work checks for rheumatoid factor (RF) and anti-CCP antibodies. Imaging—X-rays, ultrasound, or MRI—assesses joint damage and inflammation levels.

Treatment Options

While there's no cure, early aggressive treatment can control symptoms, slow progression, and preserve function:

• Medications: NSAIDs for pain and inflammation; corticosteroids for acute flares; conventional DMARDs like methotrexate; biologic and targeted synthetic DMARDs for refractory cases.
• Physical and occupational therapy: Maintains joint mobility, strength, and daily function.
• Surgery: Joint replacement or synovectomy for severe damage.

Outlook

Advances—especially biologic therapies—have dramatically improved long-term outcomes. Most people with RA lead full, active lives with proper management.

Risk Factors & Prevention

No proven prevention exists, but risk factors include family history, female sex, smoking, and obesity. Smoking cessation and weight management may reduce risk or severity.