What exactly is osteoarthritis? Who is at risk for it? Learn all about osteoarthritis here.

The term arthritis covers more than 100 diseases. Get in-depth information about arthritis, including the most common types, and see what a normal joint looks like.

Doctors have discovered that inflammation plays a bigger role in osteoarthritis than once believed. Find out how inflammation affects your joints.

Do you know which is the most common type of arthritis? Get the basics on arthritis with this quiz.

Aging and obesity are common causes in osteoarthritis development, but they're not the only ones. Learn more about what causes OA and see what an osteoarthritic joint looks like.

Can cracking knuckle’s lead to joint problems? Get the facts and the fiction on knuckle cracking.

Are those creaky joints normal aches and pains or a sign that arthritis is on the way?

Find out what three steps you can take to help prevent osteoarthritis.