4.7 The Bladder Channel System – Foot taiyang(zu tai yang jing luo)Location
2.5 cun superior to the posterior hairline and 1.3 cun lateral to
the midline or ➞Du-17(directly superior to the external occipi-
tal protuberance).How to find
To locate BL-9, ➞Du-17is a good reference point, located on
the midline, in the depression directly superior to the upper bor-
der 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 depres-
sion at the upper border of the external occipital protuberance)
and ➞ G.B.-19 (more laterally, on a vertical line through
➞G.B.-20).Needling
Transversely (subcutaneously) 0.5–1 cun. Moxibustion possible.Actions/Indications
● Expels Wind and Cold
● Opens the channel and luovessels, alleviates pain
● Benefits the eyes and noseSpecial features
In Qigong practice, BL-9plays an important role as one of the
three gates (san guan).Jade Pillow YUZHEN BL-9
Du-17
Du-16External
occipital
protuberance=(atlas)
Hairline1.3 cunBL-10BL-9Midlineca.2.5 cunC1G.B.-20
G.B.-12 Du-15G.B.-19 BL-9 Du-17BL-10Du-16Du-16Occipitomastoid
suture Occipital boneMastoid
processExternal occipital
protuberanceDu-16BL-9 Du-17 BL-9Du-17External
occipital
protuberance2.25 cunG.B.-19 1,5 cunCh04.7a-F10028.qxd 2/23/08 3:53 PM Page 259