Rheumatoid Arthritis

Rheumatoid arthritis (RA) is a chronic autoimmune disease that primarily affects the joints. It causes the immune system to mistakenly attack the body's own tissues, leading to joint inflammation, pai

1.5 million Americans
Severity: Severe
Chronic Condition
Not Contagious
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Table of Contents

At a Glance

What is it?
Rheumatoid arthritis (RA) is a chronic autoimmune disease that primarily affects the joints. It causes the immune system to mistakenly attack the body
Who it affects
Adults 30-60, more common in women

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Sources & References

  1. Mayo Clinic — mayoclinic.org
  2. National Institutes of Health (NIH) — nih.gov
  3. Centers for Disease Control and Prevention (CDC) — cdc.gov
  4. MedlinePlus — medlineplus.gov
  5. World Health Organization (WHO) — who.int
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