UB 31

Acupuncture Point Theory

UB 31 Acupuncture Point Applications and Theory

The acupuncture point "UB 31" , 上髎, is represented by "Shang Liao" in pinyin and "Upper Bone Hole" in english and may be found:

On the sacrum at the midpoint of the PSIS and the PML, level with the 1st PSF.


Of many possible clinical applications, it may be considered to influence the following issues/symptoms:

  • UB 31, UB 32, UB 33 & UB 34 together form the "Eight Liao" points and are all useful for local low back a/or sacrum problems and most genital and urinary related disorders. Of these UB 32 is most often used clinically.
  • As it quickens the connecting vessels may be useful for blockages of defecation or urination.
  • For the functional and movement aspects for female issues such as - Irregular menstruation, dysmenorrhea, leukorrhea.  And for male issues such as impotence, erectile dysfunction (ED), seminal emission, genital pain.

UB 31 has some precautions to be considered (see our precautions list).

Cautions with pregnancy (PG)

A single acupuncture point is not commonly thought of as an empirical way to influence a TCM diagnostic pattern. UB31, however, is a strong candidate to be incorporated into an acupuncture protocol for patients who exhibit: Bladder Damp Heat and/or Liver Qi Stagnation

UB 31 may potentially be used, in coordination with a well designed acupuncture treatment protocol, to influence the following conditions: Back Pain, Dysmenorrhea (Menstrual Pain - Cramps), Erectile Dysfunction (ED), Genital Pain - Swelling, Impotence (Erectile Dysfunction), Irregular Menstruation, Leukorrhea and/or Seminal Emission

While not necessarily valid clinically, EX Huatuojiaji at S1 (S1 influences the ureter and is used along with S…) and UB 27 (Main point for all Small Intestine related issues…) are nearby.

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