What Are Rheumatoid Arthritis and Osteoarthritis? Rheumatoid arthritis (RA) and osteoarthritis (OA) are common types of arthritis. Both cause pain and joint damage, but they’re different diseases. RA ...

Rheumatoid arthritis (RA) can lead to a metabolic state called rheumatoid cachexia, or muscle wasting. This form of cachexia happens when your body loses muscle mass and keeps fat mass. Your body ...

Meagan Chriswell does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond ...

Pauciarticular juvenile rheumatoid arthritis (PJRA), also known as oligoarticular juvenile idiopathic arthritis (JIA), is a type of arthritis that affects children under 16. It causes inflammation in ...