How to find

First, locate the spinous process of C7. From there, count down two spinous processes to the lower border of the spinous process of T2. Measure 1.5 cun laterally to locate BL-12 on the highest point of the paraspinal musculature.Located on the same level are a point of Ex-B-2 (0.5 cun lateral to the midline), BL 41 (Attached Branch) (3 cun lateral to the midline) and SI 13 (Crooked Wall) (on the scapula, on the medial end of the scapular spine).


1.5 cun lateral to the posterior midline, on the level of the lower border of the spinous process of the 2nd thoracic vertebra (T2).


  • Expels (external) Wind and releases the Exterior
  • Spreads and descends the Lung Qi
  • Tonifies the defensive Qi (wei qi), stabilises the Exterior
  • Benefits the nose
  • Opens the channel


Meeting point with GV (Governing Vessel – Du Mai). Important point for expelling pathogenic factors, especially Wind.