Arthritis Disease Summary
Arthritis is inflammation of your joints. Symptoms of arthritis are joint pain and stiffness, which typically worsen with age.
The two most common types of arthritis are osteoarthritis and rheumatoid.
- Rheumatoid arthritis is an autoimmune disorder that first targets the lining of joints (synovium).
- Osteoarthritis causes cartilage — the hard, slippery tissue that covers the ends of bones where they form a joint — to break down.
Uric acid crystals, infections or underlying disease, such as psoriasis or lupus, can cause other types of arthritis.
Treatments vary depending on the type of arthritis.