BL 47 Acupuncture Point

Bladder 47, or Urinary Bladder 47, Abbreviated as BL 47 or UB 47, Transliterated Hunmen in Chinese, Ethereal Soul Gate in English.

BL 47 Acupuncture Point Location:

On the back, 3.0 cun lateral to the lower border of the spinous process of the 9th thoracic vertebra.

BL 47 Acupuncture Point Indications:

  • Chest congestion and hypochondrium, vomiting, diarrhea
  • Back pain

BL 47 Acupuncture Point Benefits:

Regulates Liver Qi, activates the meridian, alleviates pain.


BL 47 is the outer Back-Shu of the Liver. Its special feature is that it helps treat the psychological/spiritual aspect of the Liver. It is usually used to treat depression, frustration, and stress.