Arthritis is inflammation of one or more of your joints. The most common types are osteoarthritis and rheumatoid arthritis. Osteoarthritis affects structures throughout the joint. The cartilage, the slippery tissue that covers the ends of bones in a joint, begins to break down and wear away. This allows bones to rub together, eventually causing inflammation and pain. READ MORE ABOUT OSTEOARTHRITIS.

Rheumatoid arthritis (RA) is an autoimmune disease that occurs when the body's immune system attacks and damages the joints and, sometimes, other organs. READ MORE ABOUT RHEUMATOID ARTHRITIS.

Rheumatoid Arthritis

Rheumatoid arthritis (RA) is an autoimmune disease that occurs when the body's immune system attacks and damages the joints and, sometimes, other organs. READ MORE

Conditions & Treatments

A Numb Arm Led to My Rheumatoid Arthritis Diagnosis

Read how one woman managed the emotional and mental aspects of being diagnosed with an autoimmune disease at the age of 49.

Your Health

One Short, Brisk Walk a Day May Keep Arthritis at Bay

Less than 10 minutes a day of brisk walking can help prevent disability in people with arthritis pain in their knee, hip, ankle or foot.

Menopause & Aging Well

5 Common Autoimmune Diseases That Affect Women

Rates of autoimmune diseases are climbing, and women are disproportionately affected. Learn more about common autoimmune diseases that affect women.

Lupus

Exercising With Rheumatoid Arthritis

Exercise is an essential part of an overall treatment plan to ease RA symptoms and improve mobility.

Nutrition & Movement

Who Is At Risk For Lupus?

Studies find race, ethnicity, gender and even geography make a difference for this autoimmune disease.

Chronic Care Issues

Primary Biliary Cholangitis (PBC)

PBC is a progressive autoimmune disease that damages or destroys the bile ducts in the liver. It can cause inflammation, scarring and cirrhosis. READ MORE

Conditions & Treatments

You've Probably Never Heard of My Disease

This autoimmune disease affects more than 4 million Americans.

Sjögren's