What is arthritis?
Arthritis is inflammation (swelling) of the joints. It causes pain and usually also limits movement of the joints that are affected. There are many kinds of arthritis.
What is osteoarthritis?
Osteoarthritis (say: “oss-tee-oh-arth-rye-tis”) is the most common kind of arthritis. Osteoarthritis (also called degenerative joint disease) can affect any joint in your body and causes the cushion layer between your bones (called the cartilage) to wear away.
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Written by familydoctor.org editorial staff