The beginning of the broad fascial tensor is located at the anterior superior iliac spine, which is the most anterior part of the body’s bilateral iliac bones, a very distinct bony prominence. The end point of the vastus lateralis is located at the lateral tibial condyle, which is the uppermost anterolateral part of the lower leg. The vastus lateralis is an important muscle in the lateral hip joint, and after it emanates from the anterior superior iliac spine, the muscle belly is gradually wrapped by fascia, that is, by the deep fascia of the thigh. At this time, the muscle gradually moves to the lower lateral aspect of the thigh, forming the iliotibial bundle, which is in the lateral part of the middle and lower 1/3 of the thigh, and gradually thins into a tendon, which gradually ends at the lateral tibial condyle. The broad fascial tensor fasciae is often used clinically as a donor for muscle flap grafts to repair defects caused by associated soft tissue injuries. The contraction of the broad fascial tensor allows flexion of the hip joint and tension of the broad fascia, a muscle that is important for upright weight bearing in the body.