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Urinary Bladder Meridian (Toot Tai Yang) Points

UB-27 (Xiao Chang Shu)


Chinese Name:

Xiaochangshu 小肠俞

English translation:

Small Intestine Shu


In the region of the sacrum, 1.5 cun lateral to the middle sacral crest, at the level of the 1st posterior sacral foramen.


Back-Shu point of the Small Intestine


  • Lower abdominal pain and distension, enuresis, dysentry.
  • Seminal emission, hematuria (blood lin), vaginal discharge, low back and sacral pain, lin syndrome, constipation, hernia, dry mouth/diabetes, haemorrhoids, foot swelling.
  • Vexation, peritonitis, endometritis, prostatodynia, Yin (cold) of Bladder and Sanjiao, Yin (cold) or Yang (hot) disoders of Large and Small Intestine, special point for humoral liquids, rheumatism, sciatica.


Promotes the functions of the Small Intestine, resolves Dampness and Damp-Heat, benefits urination.


Back-Shu points are corresponding points on the back where the Qi of the respective Zang-Fu organ is infused. If the Five Zang organs are diseased, abnormal reactions appear on the Back-Shu points. Back-Shu points have a direct therapeutic effect on the diseases of the Five Zang organs. For more complete information on Back-Shu and Front-Mu points, click here.


Perpendicular or oblique insertion .8 - 1.2 cun.

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