족태양방광경 (BL)   >   BL53 포황 (胞肓)
부위
엉덩이부위, 둘째 뒤엉치뼈구멍(the 2nd posterior sacral foramen)과 같은 높이, 정중엉치뼈능선(median sacral crest)에서 가쪽으로 3寸.

In the buttock region, at the same level as the second posterior sacral foramen, 3 B-cun lateral to the median sacral crest.
Note: BL53, BL28 and BL32 are located at the same level as the second posterior sacral foramen.
침구법
- 直刺 0.5～1.5寸
- 斜刺 1～2寸