Obliquely 0.5–1.5 cun.
Sanjiaoshu BL-22 is a very important point.
First of all, as the Back Transporting-Shu point of the Triple Burner, it helps regulating Qi and Body Fluids in the Upper, Middle and Lower Burner. BL-22 is locate right above Shenshu BL-23, the Back Transporting-Shu point of the Kidneys. It promotes the emerging of the Original Qi from the space between the Kidneys and its dispersing to the five Yin and six Yang Organs as well as their Channels through the Triple Burner.
The Triple Burner Channel belongs to Lesser Yang. Thus BL-22 is indicated for Lessor Yang Patterns according to the Six Stage Theory. Typical symptoms include alternation of hot and cold feeling, headaches, dizziness and bitter taste.
Secondly, it is a major point to regulate water passages in the Lower Burner. It helps to transform and transport Body Fluids properly and excrete dirty Fluids. Thus it also resolves Dampness in the Lower Burner by regulating the Water Passage. When this function is impaired, the patients tend to suffer from Oedema and various urinary issues.