What's the difference between arthritis and osteoarthritis?
Arthritis is a general term that describes inflammation in joints. Osteoarthritis, also called degenerative joint disease, is the most common type of arthritis. It happens when the cartilage in your joints break down, often in your hips, knees, and spine. Osteoarthritis also often affects the finger joints, the joint at the base of the thumb, and the joint at the base of the big toe.
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