Triple Energizer MeridianTE18

Chimai 瘈脈

For reference only · not a substitute for diagnosis or treatment

Short answer

On the head, at the middle of the mastoid process — one third of the way along the curve that follows the ear from TE17 up to TE20.

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

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

Chimai — 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.

Chimai — ③ Under the skin — **③ Under the skin**
Temporal bone

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

On this page

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

1Where is Chimai?

On the head, at the middle of the mastoid process — one third of the way along the curve that follows the ear from TE17 up to TE20.

Beneath the point

Temporal bone

Our 3D measurement · In our 3D model: one third of the way up the curve from TE17 along the back rim of the ear to TE20 (70.0 mm long).

2How do I find it on my body?

Locate TE17 and TE20.
Join them with a curve that follows the back rim of the ear.
Split the curve into thirds.
Press the lower third mark, on the middle of the mastoid.

📖 Words explained

mastoid process: The bone sticking down just behind the earlobe. It is part of the temporal bone, and sternocleidomastoid attaches to it.
temporal bone: The skull bone on the side of the head around the ear. The ear canal and the bump behind the ear (mastoid process) are on it, and it forms the jaw joint with the mandible.

3Before you press

⚠ Do not press when

Facial skin is thin.
Press lightly with a fingertip only.
Avoid broken or swollen skin and press only to a comfortable level.
Acupressure is not a substitute for medical care.

4How has it been used traditionally?

A point of the Triple Energizer meridian behind the ear (also read Qimai); the Zhenjiu Jiayi Jing places it on the small bluish 'chicken-foot' vessels behind the ear.

From traditional texts — not a claim of effect.

?FAQ

Where exactly is Chimai?

On the head, at the middle of the mastoid process — one third of the way along the curve that follows the ear from TE17 up to TE20.

How do I find Chimai?

Locate TE17 and TE20. Join them with a curve that follows the back rim of the ear. Split the curve into thirds. Press the lower third mark, on the middle of the mastoid.

What should I watch out for?

Facial skin is thin. Press lightly with a fingertip only. Avoid broken or swollen skin and press only to a comfortable level. Acupressure is not a substitute for medical care.

← PreviousYifeng · TE17 Next →Luxi · TE19

Sources

Location: WHO Standard Acupuncture Point Locations in the Western Pacific Region (2008), p. 166
Standard comparison: Chinese national standard GB/T 12346-2021 (Nomenclature and location of meridian points), p. 23
Korean anatomical terms: KMLE medical dictionary (Korean Medical Association terms)
Classical source: Zhenjiu Jiayi Jing vol. 3 (Wikisource edition)
Classification and traditional-use cross-check: AcuAtlas dataset (CC BY 4.0)

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.