This is the third in a series of general articles about osteoarthritis.

The Warning Signs of Osteoarthritis

STIFFNESS is a joint after getting out of bed or sitting for a long time.

SWELLING in one or more joints

A CRUNCHING FEELING or the sound of bone rubbing on bone.

About a third of people whose x-rays show evidence of osteoarthritis report pain or other symptoms. For those who experience steady or intermittent pain, it is typically aggravated by activity and relieved by rest. If you feel hot or your skin turns red you probably do not have osteoarthritis. Check with your doctor about other causes, including rheumatoid arthritis.