How to find
First of all, find L5. The next palpable structure in an inferior direction is the most superior sacral spinous process. Palpate in an inferior direction for two further sacral processes and locate the 3rd sacral foramen in a depression less than 1 cun lateral to the 3rd process. BL-29 is located on the same level (3rd sacral foramen) and 1.5 cun lateral to the midline. Located on this level is also BL 33 (Middle Foramen) (over the 3rd sacral foramen).
1.5 cun lateral to the posterior midline, on the level of the 3rd sacral foramen.
- Strengthens the lower back and the Kidneys
- Expels Cold
- Regulates the Lower Heater and stops diarrhea