CV24

Chengjiang

Star

承漿 (Chéngjiāng) — Sauce Receptacle

Ren (Conception) channel · point 24

Not yet clinically reviewed

Meeting point of the Ren Mai with the Du Mai, Stomach and Large Intestine channels

Traditionally used for

Teeth & mouth
Mood & calm
Nerves & recovery

Location

On the face, in the depression at the centre of the mentolabial groove, below the lower lip.

How to locate: On the chin, find the horizontal groove between the lower lip and the chin (the mentolabial groove); the point is in its centre on the midline.

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

Body map, front: CV24 · Head & face — Fig. — CV24 · 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:

Transverse-oblique insertion — directed superiorly

Depth 0.2–0.3 cun

skindeeper
Transverse insertion — along the lower lip to join with Dicang ST4

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. 524 Supports: techniques (names this point)

Site notes · not cited

Depth: 0.2–0.3 cun

Angle: Oblique, directed superiorly

Functions

Expels wind and benefits the face and mouth
Opens the luo-connecting vessels and relieves pain and swelling
Regulates the Ren Mai
Promotes the flow of fluids
Calms the spirit

Indications

Facial paralysis and deviation of the mouthdrooling and excessive salivationtoothache and swelling of the gumsdry mouth and thirstclenched jawmania

Clinical Notes

Paired with GV26 as the classical front–back midline combination for facial paralysis and for acute lumbar sprain.

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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