The lateral bone of the thigh root is called the greater trochanter of the femur, also called the greater trochanter of the femur, which connects the femoral head medially through the femoral neck and is an outward protrusion of the proximal femur, which is clinically the main body marker of the hip and is the stopping point of many muscles, such as the gluteus medius, gluteus minimus, pear-shaped muscle, etc. The iliotibial bundle of the lateral thigh also passes through here. In clinical practice, we often hear patients say that when flexing and extending the hip, there is a popping sound, called popping hip, which is mainly caused by the iliotibial bundle sliding back and forth on the greater trochanter, so we should move less, and we can use topical Chinese medicine locally, and also physical therapy. The main symptoms of hip bursitis are local redness, swelling, heat and pain, and the main treatment is to apply cold compresses and reduce activities.