On the front of the hip is the tensor fascia lata (TFL), a relatively small but important muscle that runs from a bony prominence on the ilium called the ASIS (anterior superior iliac spine) to a broad band of fascia (iliotibial band, or ITB) that inserts into the lower leg bone and kneecap. The TFL flexes, rotates inward (internal rotation), and abducts the thigh bone, as well as controls the ITB.

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Fixing You: Hip & Knee Pain: Self-treatment for IT band friction, arthritis, groin pain, bursitis, knee pain, PFS, AKPS, and other diagnoses
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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.