The vastus lateralis muscle is flat and rectangular in shape and is located on the lateral side of the buttocks and thighs, anteriorly as the suture muscle and posteriorly as the gluteus medius muscle. It is hidden between two layers of broad fascia and starts from the anterior superior iliac spine, moves to the iliotibial bundle at the junction of the upper and middle 1/3 of the femur, and ends at the lateral side of the upper tibia, which has the role of pulling (flexing) the thigh forward and abducting. When the human body stands, the broad fascia tensor muscle contracts, restraining the muscles of the lateral thigh, increasing its tension and contraction, and also plays a role in fixing the knee joint to maintain a standing position. Because of the large size of the muscles in the thigh area, the strength of the muscles, frequent activities, so that the tension of the broad fascia tensor muscle increases, resulting in increased opportunities for friction, coupled with the superficiality of its location, but also susceptible to external factors such as wind, cold and moisture and trauma and lesions. Frequent bending and sitting with the hip joint in flexion can cause shortening degeneration and aseptic inflammation of the broad fascial tensor muscle. In some cases, due to the lesion of one side of the waist and hip, knee, calf or ankle, the diseased side cannot walk with weight, so that long-term single-leg weight-bearing can cause strain lesion of the broad fascia tensor muscle on the healthy side. In the case of sudden posterior thigh extension and knee extension, it can cause acute injury to the broad fascial tensor muscle, which can turn into chronic aseptic inflammatory lesions if not treated effectively in time. Symptoms of broad fascial tensor syndrome: hip pain or lateral hip pain, significant pain in the hip when walking and lifting the leg, afraid to put weight on one leg. In mild cases, the patient only feels soreness, sleepiness, swelling, pain or discomfort in the hip, and walking is weak. Generally, the patient can insist on moderate or small amount of activities, but the symptoms are aggravated at the beginning and after the end, especially when doing body rotation, hip extension and rapid change of movement direction. In patients with prolonged disease, there is numbness in the anterior and lateral aspect of the hip, and the pain often radiates along the lateral thigh to the knee. In some patients, due to the contracture of the iliotibial bundle, the hip joint stretches and flexes with the femoral ridge, resulting in a popping sound, forming a “popping hip”. In more severe cases, the outer thighs become tight, just like a tightened bowstring, and it is difficult to control walking, with the toes facing outward and a crab-like transverse limp. In some patients, the pain is transmitted to the knee when sliding pressure is applied to the area. In patients with less subcutaneous fat in the hip, the area can often be felt as a stripe-like object; when the patient is made to extend and flex the hip joint, the stripe-like object can be felt to slide under the hand and make a sound. When examining the patient, there is a clear relationship between the degree of straight leg elevation on the affected side and the position of the thigh. When the affected limb is elevated 30°~50° in neutral position, pain and numbness will appear in the thigh and lateral knee; while when the thigh is inducted and internally rotated 20°~30°, and the broad fascia is in tension, heavy pain will appear immediately when doing straight leg elevation; when the thigh is abducted and externally rotated 20°~30°, and the broad fascia tensor muscle is relaxed, pain will not appear even when the straight leg is elevated to 60°~90°. In acupuncture clinics, when encountering patients with broad fascia tensor syndrome, it is difficult to select acupoints from the meridian points for the clinical condition because most patients do not have meridian points in the onset area, and correct selection of treatment points is the key to successful treatment. To select a pressure point as a treatment point for acupuncture, the patient is placed in a prone position, and the physician presses the second to third finger of the hand against the anterior superior iliac spine in front of the iliac bone, and presses it with the thumb at the back of the transverse palm, which produces significant pain. The location of the painful point is the main treatment point for this condition. In addition to this location, corresponding pain points may be found from this point down along the broad fascia and to the iliotibial bundle, and some may have pain at the medial suture muscle, which should also be considered as treatment points for acupuncture. The range of pain points is not large, can be treated with acupuncture knife, round sharp needles, the range of pain area is larger, with not less than 0.3mm diameter acupuncture needles more acupuncture treatment, while using pulse current, or heating, as appropriate, after the end of acupuncture, cupping in the whole range of pain area (except acupuncture knife). Patients need to pay attention to: 1, the acute onset of the need for appropriate rest. 2, self-treatment: using the affected side of the fingers to lift and pinch the tissues of the painful area, mention pinching a relaxation, from top to bottom, the force from light to heavy, each time about 20 times. Then, the affected side of the hand in a semi-clenched fist to push the lesion of the broad fascia tensor muscle, so that the outer thighs have a burning sensation, so as a treatment, 1 to 2 times a day. 3, local hot compresses, can also receive certain effects.