Kidney MeridianKI9

Zhubin 築賓

For reference only · not a substitute for diagnosis or treatment

Short answer

Back-inner side of the lower leg, in the groove between the soleus and the Achilles tendon.

Xi-cleft point of the Yin Wei vessel

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

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

Zhubin — 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.

Zhubin — ③ Under the skin — **③ Under the skin**
Calcaneal tendon · Soleus muscle · Flexor digitorum longus

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

On this page

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

1Where is Zhubin?

Back-inner side of the lower leg, in the groove between the soleus and the Achilles tendon.

It is 5 B-cun above the inner ankle peak, on the KI3–KI10 line and level with LR5.

Beneath the point

Calcaneal tendon · Soleus muscle · Flexor digitorum longus

Our 3D measurement · In our 3D model: 5 cun (115.0 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), in the groove where the front edge of the Achilles tendon meets the soleus (level with LR5); 12.0 mm off the straight KI3–KI10 line — still to be verified.

2How do I find it on my body?

Use the 13 B-cun inner-leg scale (SP9 to the inner ankle peak) to mark 5 B-cun above the ankle.
Bend the knee and push the foot down against resistance.
When the soleus stands out behind the inner edge of the tibia, press the groove between it and the Achilles tendon.

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

flexor digitorum longus: A muscle that starts deep on the inner back of the calf, curves behind the inner ankle and attaches to the tip bones of the 2nd–5th toes. It bends the toes.

3Before you press

⚠ Do not press when

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 Yin Wei vessel (Zhenjiu Jiayi Jing) — a historical classification, not a claim of effect.
The name is usually translated as 'Guest Building'.

From traditional texts — not a claim of effect.

5Alternative location

Chinese standard (2021) differs · China's 2021 standard measures the 5 B-cun from Taixi (KI3) rather than from the inner ankle peak.

?FAQ

Where exactly is Zhubin?

Back-inner side of the lower leg, in the groove between the soleus and the Achilles tendon. It is 5 B-cun above the inner ankle peak, on the KI3–KI10 line and level with LR5.

How do I find Zhubin?

Use the 13 B-cun inner-leg scale (SP9 to the inner ankle peak) to mark 5 B-cun above the ankle. Bend the knee and push the foot down against resistance. When the soleus stands out behind the inner edge of the tibia, press the groove between it and the Achilles tendon.

What should I watch out for?

Avoid broken or swollen skin and press only to a comfortable level. Acupressure is not a substitute for medical care.

← PreviousJiaoxin · KI8 Next →Yingu · KI10

Sources

Location: WHO Standard Acupuncture Point Locations in the Western Pacific Region (2008), p. 140
Standard comparison: Chinese national standard GB/T 12346-2021 (Nomenclature and location of meridian points)
Korean anatomical terms and point names: KMCRIC Standard Acupoint DB (Korea)
Classification source: Zhenjiu Jiayi Jing (Huangfu Mi), vol. 3
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.