Liver MeridianLR6

Zhongdu 中都

For reference only · not a substitute for diagnosis or treatment

Short answer

On the front-inner leg, in the middle of the flat inner surface of the tibia.

Xi-cleft point

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

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

Zhongdu — 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.

Zhongdu — ③ Under the skin — **③ Under the skin**
Tibia · Great saphenous vein

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

On this page

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

1Where is Zhongdu?

On the front-inner leg, in the middle of the flat inner surface of the tibia.

It is 7 B-cun above the peak of the medial malleolus (inner ankle bone).

Beneath the point

Tibia · Great saphenous vein

Our 3D measurement · In our 3D model: 7 cun (161.0 mm) above the peak of the medial malleolus (1 cun = 23.00 mm, from the lower border of the medial tibial condyle to the malleolus = 13 cun), on the middle of the flat inner surface of the tibia (28.5 mm wide).

2How do I find it on my body?

Find the midpoint of the line from the apex of the patella to the peak of the inner ankle bone (15 B-cun). That is 7.5 B-cun above the ankle.
Come down 0.5 B-cun, to 7 B-cun above the ankle.
At that height, press the middle of the inner surface of the tibia.

Check · it is 2 B-cun straight above LR5 (Ligou).

What is a “cun”?

A cun is a body-scaled unit of length. The precise way is to divide a bone length into equal parts (proportional bone cun); finger widths are a quick estimate.

📖 Words explained

great saphenous vein: A vein under the skin that starts on the inner top of the foot, passes in front of the inner ankle and climbs the inner leg to the groin. It is the longest vein in the body.
medial malleolus: The bump on the inner side of the ankle, the lower end of the tibia. Its highest point is a starting mark for measuring lower-leg points.

3Before you press

⚠ Do not press when

The skin over the tibia is thin, so press gently.
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?

Classified as the Xi-cleft point of the Liver meridian (Zhenjiu Jiayi Jing, vol. 3) — a historical classification, not a claim of effect.
Xi means 'cleft' or 'gap'.

From traditional texts — not a claim of effect.

?FAQ

Where exactly is Zhongdu?

On the front-inner leg, in the middle of the flat inner surface of the tibia. It is 7 B-cun above the peak of the medial malleolus (inner ankle bone).

How do I find Zhongdu?

Find the midpoint of the line from the apex of the patella to the peak of the inner ankle bone (15 B-cun). That is 7.5 B-cun above the ankle. Come down 0.5 B-cun, to 7 B-cun above the ankle. At that height, press the middle of the inner surface of the tibia. it is 2 B-cun straight above LR5 (Ligou).

What should I watch out for?

The skin over the tibia is thin, so press gently. Avoid broken or swollen skin and press only to a comfortable level. Acupressure is not a substitute for medical care.

← PreviousLigou · LR5 Next →Xiguan · LR7

Sources

Location: WHO Standard Acupuncture Point Locations in the Western Pacific Region (2008), p. 198
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 (Siku Quanshu edition)

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.