5.3 Du maiLocation
On the midline, 3.5 cun superior to the anterior hairline or 1.5
cun anterior to ➞Du-20.How to find
First, locate ➞Du-20(at the junction of the vertical midline and
a line connecting the apices of the ears) and, from there, meas-
ure 1.5 cun in an anterior direction. Or:Locate the anterior hair-
line (➞3.1.1; the distance from the anterior hairline to ➞Du-20
is 5 cun) and palpate 3.5 cun in a superior/posterior direction.
There, locate Du-21on the midline.Needling
Transversely (subcutaneously) 0.5–1 cun. Caution with infants
whose fontanelle has not yet closed. Moxibustion possible.Actions/Indications
● Dispels Wind and Dampness
● Opens the channel
● Calms the shenIn Front of the Crown QIANDING Du-21
Du-21 Apex of the earMidlineApex of the ear
1.5 cunDu-203.5 cunHairlineBL-4BL-6BL-5BL-7BL-8G.B.-18G.B.-17G.B.-16G.B.-15Du-20Du-21Du-22Du-23
BL-3
Du-24 HairlineCoronal sutureParietal boneSagittal sutureFrontal
eminenceVertex
Occipital boneDu-20Ch05b-F10028.qxd 2/22/08 9:56 PM Page 519