[BL-9 Jade Pillow YUZHEN – ] 2.5 cun superior to the posterior hairline and 1.3 cun lateral to the midline or ➞Du-17 (directly superior to the external occipital protuberance).
How to find
To locate BL-9, ➞ Du-17 is a good reference point, located on
the midline, in the depression directly superior to the upper border
of the external occipital protuberance (➞3.1.5). From there,
measure 1.3 cun in a lateral direction to locate BL-9, which is
generally located on an imaginary vertical line through ➞BL-10. 
Or: Locate the posterior hairline (often not very accurate
➞ 3.1.5) and, on the midline, measure 2.5 cun in a superior
direction, then 1.3 cun towards lateral.
Located on the same level are ➞ Du-17 (midline, in the depression
at the upper border of the external occipital protuberance)
and ➞ G.B.-19  (more laterally, on a vertical line through
➞G.B.-20 ).
Transversely (subcutaneously) 0.5–1 cun. Moxibustion possible.
● Expels Wind and Cold
● Opens the channel and luo vessels, alleviates pain
● Benefits the eyes and nose
Special features
In Qigong practice, BL-9 plays an important role as one of the
three gates (san guan).


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