Pain and tenderness close to or under the kneecap at the front of the knee and surrounding area is caused by an injury called runner’s knee. Iliotibial band syndrome is pain on the outer side of the knee.
Both are overuse or repetitive strain injuries that can become chronic, or the result of trauma to the knee, misaligned bones, weak or imbalanced muscles or feet problems. They can occur together, but most knee pain is in the front of the knee.
Anti-inflammatory medication, orthotics and physical therapy are typical treatments, but severe cases may need surgery for any cartilage problems or if the position of the kneecap needs to be corrected.