9. Iliotibial Band Syndrome

Iliotibial band syndrome (ITBS) occurs when the iliotibial band (the ligament that runs down the outside of the thigh from the hip to the shin) is tight or inflamed. It is one of the most common overuse injuries among runners. It can also be associated with activities such as cycling, hiking, or weightlifting. Iliotibial band syndrome is the most common cause of lateral, or side, knee pain. It is caused by excessive friction of the iliotibial band on the side of the knee.

The most common complaint of ITBS is a diffuse pain over the lateral aspect (side) of the knee. Running, especially downhill, may aggravate the knee pain. Another common symptom of ITBS is a weakness when moving the leg out sideways. Treatment options for the treatment of ITBS include rest, ice, anti-inflammatory medications, stretching and strengthening exercises, sports massage, and acupuncture.