Causes of Rheumatoid Arthritis and Osteoarthritis

Rheumatoid Arthritis vs Osteoarthritis: What Are They? Rheumatoid arthritis (RA) and osteoarthritis (OA) are common forms of arthritis. Both leads to joint pain and joint degeneration, but they are unrelated disorders. RA is an autoimmune disorder. It happens when your immune system does not function properly. When you’re healthy, your immune system Eliminates invaders like…