osteoarthritis are different types of arthritis.
They share some similar characteristics, but each has different symptoms
and requires different treatment. So an accurate diagnosis is
Osteoarthritis is the most common form of arthritis.
Rheumatoid arthritis affects about one-tenth as many people as osteoarthritis.
The main difference between osteoarthritis and rheumatoid arthritis is the
cause behind the
joint symptoms. Osteoarthritis is caused by mechanical
wear and tear on joints. Rheumatoid arthritis is an
autoimmune disease in which the body's own
immune system attacks the body's
For more information, see the topics
Rheumatoid Arthritis and
June 5, 2012
Anne C. Poinier, MD - Internal Medicine
& Nancy Ann Shadick, MD, MPH - Internal Medicine, Rheumatology
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