Baohuang BL-53 Acupuncture Point

Baohuang BL-53

Chinese: 胞肓

Pinyin: Bāo Huāng


At the level of the 2nd posterior sacral foramen, 3 cun lateral to the posterior midline. 

How to locate

First identify the Tuffier's line which connects the highest points of the iliac crest. The spinous process of the 4th lumber vertebra (L4) mostly falls on this line. 

Then palpate in an inferior direction, passing L5, and reach the most superior sacral spinous process. Palpate in a lateral direction on the level of the sacral processes for the depression of the 2nd sacral foramina. 

Baohuang BL-53 is at the level of the 2nd sacral foramina and 3 cun lateral to the posterior midline. 

Main actions

  1. Regulates Qi in the Lower Burner
  2. Benefits urination


Vertically or obliquely 1–1.5 cun.  

Commentary for Baohuang BL-53

The actions of Baohuang BL-53 are quite similar to Huangmen BL-51, which is at the same level as Sanjiaoshu BL-22. The latter is the Back-Transporting-Shu point of the Triple Burner. Therefore, they share similar attributions. 

One of  the most important one is to regulate the Triple Burner and spread the Original Qi to the body. While BL-51 is more focus on the Upper Burner while BL-53 is more on the Lower Burner.

Furthermore, BL-53 promotes the transformation and excretion of the dirty Body Fluids in the Lower Burner. Thus it treats urinary issues such as retention of urine, difficult or burning urination.