What Causes Knee Pain?
Osteoarthritis is the leading cause of knee pain in the United States. It occurs when the cartilage and bone underneath wear down over time. Studies estimate that over half of people will develop knee osteoarthritis over their lifetime.1
A knee with osteoarthritis is not able to bend and function as well as a healthy knee. When osteoarthritis sets in, the smooth and slippery tissue that covers and cushions the ends of bones, called cartilage, becomes frayed and wears away. Over time, the progression of osteoarthritis can lead to increased pain and reduced mobility.
Osteoarthritis symptoms include pain and stiffness. This is commonly described as an aching pain, like pain experienced after a long walk. Symptoms may be more noticeable in the morning or after a long period of rest. Osteoarthritis, or “wear and tear” arthritis, often affects people in their middle-ages and beyond.
How Does Osteoarthritis Affect Your Knee?
Osteoarthritis develops slowly over many years. As the disease progresses bone-on-bone contact can occur, which can cause the damaged bones to grow outward and develop painful deformities. Pain from osteoarthritis can range from mild to severe depending on the progression of the disease and your tolerance for pain.