Atlas of Acupuncture

4 Acupuncture Points of the Twelve Primary Channels

Location

0.5 cun superior to the anterior hairline and 1.5 cun lateral to the

midline (or one third of the distance between ➞Du-24and

➞ST-8).

How to find

While ➞BL-3is still located on a vertical line through the inner

canthus of the eye, BL-4is located slightly more laterally (hence

its name). The distance of 1.5 cun from the midline refers to the

proportional cun measurements along the anterior hairline

(➞3.1.1): the distance between ➞Du-24(on the midline) and

➞ST-8(on the corner of the forehead) is 4.5 proportional cun;

therefore, the distance between BL-4and the midline is one

third of this distance.

Located on the same level (0.5 cun within the anterior hairline)

are ➞Du-24(on the midline), ➞BL-3(superior to the inner

canthus of the eye), ➞G.B.-15(on the pupil line), ➞G.B.-13

(3 cun lateral to the midline) and ➞ST-8(on the corner of the

forehead).

Needling

Transversely (subcutaneously) 0.5–1 cun

Actions/Indications

● Expels Wind and Wind-Heat, especially from the eyes and

the nose

● Clears the head, opens the orifices, alleviates pain

BL-4 Crooked Curve QUCHA

Original hairline

ST-8

1.5 cun

BL-4

Hairline

Midline

0.5 cun

1/3 2/3

ST-8

Du-24

BL-2

Ex-HN-4

ST-1

ST-2

BL-1

G.B.-14

Ex-HN-7

Ex-HN-3

G.B.-13

T.B. -23

Du-24

G.B.-15

G.B.-1

ST-8 BL-4

BL-3

BL-5 Du-23

4.5 cun ST-8

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