BL4

Quchai

Star

曲差 (Qūchāi) — Deviating Turn

Bladder channel · point 4

Not yet clinically reviewed

Traditionally used for

Headaches
Eye health
Nose & throat

Location

On the head, 0.5 cun within the anterior hairline, 1.5 cun lateral to the midline.

How to locate: On the line 0.5 cun within the anterior hairline, the distance from GV24 on the midline to ST8 at the corner of the forehead is 4.5 cun; the point is one third of the way from GV24, 1.5 cun from the midline and slightly lateral to BL3.

Distances are in cun, a proportional unit — how to measure.

Body map, back: BL4 · Head & face — Fig. — BL4 · Head & face After Albinus, 1747

The skull, from the front — Gray's Anatomy plate — The skull, from the front Gray's Anatomy, 1918

3D view

3D view not available for this point: its position on the 3D model couldn't be checked against its location text, so it is not shown. The 2D maps above show it.

Needling

Cited needling

Transverse insertion

Depth 0.5–1 cun

skindeeper

Depths describe average adult habitus in the cited population, never a single safe number for the patient in front of you. Palpate and adjust.

Sources (1)

Deadman P, Al-Khafaji M, Baker K. A Manual of Acupuncture. Hove: Journal of Chinese Medicine Publications; 1998 — p. 259 Supports: techniques (names this point)

Site notes · not cited

Depth: 0.3–0.5 cun

Angle: Transverse

Functions

Expels wind and wind-heat
Opens the nasal passages
Clears the head, benefits the eyes and alleviates pain

Indications

Nasal congestion and rhinitisfrontal headacheblurred visionnosebleed

Sources

World Health Organization. WHO Standard Acupuncture Point Locations in the Western Pacific Region. Manila: WHO Regional Office for the Western Pacific, 2008. (Location.)
Focks C, ed. Atlas of Acupuncture. Edinburgh: Churchill Livingstone Elsevier, 2008. (Locating method and actions.)

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