Ankylosing spondylitis (pronounced ankle-oh-sing spon-dill-eye-tiss) is a form of arthritis that causes chronic (long-term) spine inflammation. Ankylosing spondylitis (AS) inflames the sacroiliac joints located between...

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

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...

What Is Raynaud’s Phenomenon? Do your fingers or toes suddenly become cold, pale, and numb when exposed to cold temperatures? You may...

Do You Feel Like the Tin Man? If you’ve ever seen The Wizard of Oz, you remember the Tin Man—stiff, creaky, barely...

Lupus: What You Need to Know Lupus is an autoimmune condition in which the body’s immune system mistakenly attacks healthy cells and...

What Is Ankylosing Spondylitis? Ankylosing spondylitis (AS) is a chronic inflammatory form of arthritis that primarily affects the spine. It causes pain,...

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