Medical News Today: What's the difference between rheumatoid arthritis and osteoarthritis?

Rheumatoid arthritis (RA) and osteoarthritis (OA) are two conditions that cause pain and stiffness in the joints. They have different causes and treatments. Learn about the differences between RA and OA here.
Source: Health News from Medical News Today - Category: Consumer Health News Tags: Rheumatoid Arthritis Source Type: news