GV28

Yinjiao

Star

齦交 (Yínjiāo) — Gum Intersection

Du (Governing) channel · point 28

Not yet clinically reviewed

Meeting point of the Du Mai with the Ren Mai and the Stomach channel

Traditionally used for

Eye health
Nose & throat
Teeth & mouth
Bowel health

Location

Inside the mouth, at the junction of the upper lip frenulum and the upper gum.

How to locate: With the head slightly extended, lift the upper lip to expose the frenulum; the point is on the midline where the frenulum joins the upper gum.

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

Body map, front: GV28 · Head & face — Fig. — GV28 · 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

Techniques — the source gives these as alternatives:

Oblique insertion — directed superiorly

Depth 0.2–0.3 cun

skindeeper
Prick to bleed

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. 561 Supports: techniques (names this point)

Site notes · not cited

Depth: 0.1–0.2 cun

Angle: Oblique, directed superiorly, or prick to bleed

⚠ Cautions: An intra-oral point — observe strict hygiene and warn the patient. Bleeding is the more usual technique.

Functions

Clears heat from the gums and the face
Benefits the nose and the eyes

Indications

Swelling, pain and bleeding of the gumsmouth ulcersnasal congestion and nasal polypsexcessive tearing and eye painhaemorrhoids (classical)

Clinical Notes

The terminal point of the Du Mai, where it meets the Ren Mai to close the circuit of the two midline vessels.

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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