November 2009 What's Causing Your Knee Pain? If you're experiencing frequent pain or stiffness, it's important to find out why - because it may be a form of arthritis. The most common type is osteoarthritis (OA), which creates a loss of cartilage and damages the cushioning fluid in the knee joint. Learn more about OA of the knee. Read More More Resources Top 6 Treatment Options for OA Preparing for Your Doctor's Visit Reducing Knee Pain Examining the Causes of Knee Pain 10 Reasons to Start Walking Walking Away the Pain Walking can burn calories, reduce the risk of fractures, strengthen joints and lighten up your mood. Walking can also help ease general knee pain. Learn more about the benefits of walking. Read More