Runner's knee refers to a number of medical conditions that cause pain around the front of the knee (patellofemoral pain). These conditions include anterior knee pain syndrome, patellofemoral malalignment, and chondromalacia patella.
Many athletes put heavy stress on the front of their knees. For example, jumpers, skiers, cyclists, and soccer players can also have symptoms of runner's knee.
Although arthritis is often the first illness that comes to mind, our knees are vulnerable to many diseases and conditions. Bone and joint problems are among the most disabling and costly medical issues in the United States.
When you walk, the many parts of your knee usually work together in harmony. Because the stability of your knee depends so much on the supporting muscles, tendons, and ligaments, injuries in these structures are common.