The Worn-out Joint
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Osteoarthritis results when a joint begins to wear out. One or more joints in the body may be affected. The tendency to develop this condition may run in your family. Or it may be caused by an injury you had years ago. Your doctor can determine whether you have osteoarthritis or another type of joint problem that needs a different kind of
treatment.
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How Joints Work
A joint is a place where two bones meet. The parts of a joint help the bones move easily. Cartilage is smooth tissue that cushions the ends of bones, letting them slide against each other. The synovial membrane surrounds the joint. It makes a fluid that lubricates the joint.
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Healthy joint
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When a Joint Wears Out
Through long use or injury, or because of a family tendency, the cartilage can become rough and damaged. It starts to wear unevenly. The ends of the bones then rub together, causing stiffness, pain, and sometimes swelling. Bony spurs may grow, enlarging the joint. The muscles around the joint may weaken.
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Joint with osteoarthritis
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This information is not intended as a substitute for professional medical care.
Only your doctor can diagnose and treat a medical problem.
©2001 The StayWell Company, 1100 Grundy Lane, San Bruno, CA 94066-3030.
www.staywell.com 800 333-3032. All rights reserved.
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