What Is Polymyositis? Polymyositis is a rare inflammatory muscle disease that causes progressive muscle weakness, particularly in muscles closest to the center...

What Is Sjögren’s Syndrome? Sjögren’s (pronounced SHOW-grins) syndrome is a chronic autoimmune disorder in which the immune system attacks the body’s moisture-producing...

Sarcoidosis is an inflammatory disease in which granulomas, or clumps of inflammatory cells, form in various organs. This causes organ inflammation. Sarcoidosis...

Rheumatoid Arthritis: Understanding Symptoms, Causes, and Treatment Rheumatoid arthritis (RA) is an autoimmune disease that causes joint pain, inflammation, and progressive damage...

What Is Gout? (A Common Inflammatory Arthritis) Gout is one of the most common forms of inflammatory arthritis affecting adults today. According...

Crohn’s Disease: Causes, Treatment, and Management Crohn’s disease causes inflammation in parts of the digestive system. It can affect any area of...

Osteoporosis: What You Need to Know Osteoporosis weakens bones, making them more susceptible to sudden and unexpected fractures. It means you have...

Systemic scleroderma is an autoimmune rheumatic disease characterized by excessive production and accumulation of collagen, called fibrosis, in the skin and internal organs, and by...

What Is Reactive Arthritis? Reactive arthritis is a type of inflammatory arthritis that affects the joints, eyes, urinary tract (urethra), and skin....