5.3 Du mai
Location
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 shen
In Front of the Crown QIANDING Du-21
Du-21 Apex of the ear
Midline
Apex of the ear
1.5 cun
Du-20
3.5 cun
Hairline
BL-4
BL-6
BL-5
BL-7
BL-8
G.B.-18
G.B.-17
G.B.-16
G.B.-15
Du-20
Du-21
Du-22
Du-23
BL-3
Du-24 Hairline
Coronal suture
Parietal bone
Sagittal suture
Frontal
eminence
Vertex
Occipital bone
Du-20
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