[ Location ] Localized in the prone position, on buttocks, extend a straight line downward from Baihuanshu. and a transverse line from Huanzhong, the point is the crossing point of the two lines. (Fig. 100)
 
[Regional Anatomy] Skin→subcutaneous tissue→gluteus maximus→gluteus medius→gluteus minimus. Superficial layer, the distribution of medial cluneal nerve and inferior clunial nerves; deep layer, superior and inferior gluteal arteries, veins and nerves.