Hello, Yinlingquan: The inner knee is three inches at the moment, pointing inward about two fingers. Acupoint selection method of Yinlingquan: Sitting or supine position is adopted, which is located on the inner side of human calf, in the depression of the medial tibia below the knee, opposite to Yanglingquan (or when the medial tibia is depressed below the condyle). Diji point: located on the inner side of the calf, at the rear edge of the tibia five inches below the knee.