What Causes Outer Knee Pain (Iliotibial Band Syndrome)?
Increased running is the number one cause of this condition, and can result in severe knee pain. The knee pains may get even worse if you do any of the following: Running down hills can cause increased knee pain. Changing anything about your workout, like changing the surface on which you run, may result in knee pains. Wearing worn out shoes, especially if you run on a regular basis, can contribute to your knee pain. If you have any conditions such as pronation, a tight iliotibial band, leg length inequality or weak quadriceps muscles, can also add to increased knee pain.
