Governor VesselGV28

Yinjiao 齦交

For reference only · not a substitute for diagnosis or treatment

Short answer

Inside the mouth, where the frenulum of the upper lip joins the upper gum.

See it in 3DRotate the body and peel back the skin to see the bones and muscles beneath.
Open the 3D Acupoint Map →

🖼See it in pictures

Yinjiao — ① Where on the body? — **① Where on the body?**

Yinjiao — Textbook view — skin on the left, muscle and bone underneath on the right — **Textbook view — skin on the left, muscle and bone underneath on the right**
Location and structures come from our 3D model; only the drawing style was refined with AI. Labels are added by us.

Yinjiao — ③ Under the skin — **③ Under the skin**
Maxilla · Upper medial incisor · Superior labial artery · Maxilla · Upper medial incisor · Superior labial artery

Rendered straight from the 3D model at the computed location. The glowing ring marks Yinjiao.

On this page

Where is Yinjiao?
How do I find it on my body?
Before you press
How has it been used traditionally?
FAQ

1Where is Yinjiao?

Inside the mouth, where the frenulum of the upper lip joins the upper gum.

Beneath the point

Maxilla · Upper medial incisor · Superior labial artery · Maxilla · Upper medial incisor · Superior labial artery

Our 3D measurement · In our 3D model: inside the mouth, on the front of the bone and front teeth at the height of the lowest point of the upper alveolar ridge in the midline, 8.5 mm behind the outer skin of the upper lip. The model has no inner mouth surface (gums, inner lip), so this is an approximation.

2How do I find it on my body?

Sit, tilt the head back slightly and lift the upper lip.
Find the thin fold running from the middle of the inner upper lip to the gum (the frenulum).
The point is where that fold meets the gum.

📖 Words explained

superior labial artery: A thin branch of the facial artery that runs across inside the upper lip.
mucous membrane: The moist lining of inner passages such as the mouth and nose. It is thinner and more delicate than skin.

3Before you press

⚠ Do not press when

This point is on the mucous membrane inside the mouth and is not for self-acupressure.
Safety manuals list it among points handled with gloves.
Acupressure is not a substitute for medical care.

4How has it been used traditionally?

The Zhenjiu Jiayi Jing (vol. 3) places it in the gum seam above the teeth, inside the lip. It is the last point of the Governor Vessel.

From traditional texts — not a claim of effect.

?FAQ

Where exactly is Yinjiao?

Inside the mouth, where the frenulum of the upper lip joins the upper gum.

How do I find Yinjiao?

Sit, tilt the head back slightly and lift the upper lip. Find the thin fold running from the middle of the inner upper lip to the gum (the frenulum). The point is where that fold meets the gum.

What should I watch out for?

This point is on the mucous membrane inside the mouth and is not for self-acupressure. Safety manuals list it among points handled with gloves. Acupressure is not a substitute for medical care.

← PreviousDuiduan · GV27 Next meridian →Huiyin · CV1

Sources

Location: WHO Standard Acupuncture Point Locations in the Western Pacific Region (2008), p. 217
Standard comparison: Chinese national standard GB/T 12346-2021 (Nomenclature and location of meridian points)
Traditional-use cross-check: AcuAtlas dataset (CC BY 4.0)
Classification source: Zhenjiu Jiayi Jing vol. 3
Safety: CCAOM Clean Needle Technique Manual, 7th ed. (rev. 2024), p. 185

Positions computed from the WHO standard locations (2008) on Z-Anatomy (CC BY-SA 4.0) · BodyParts3D © DBCLS. For reference only — not a substitute for diagnosis or treatment. See a clinician if you are unwell.