Kidney MeridianKI4

Dazhong 大鍾

For reference only · not a substitute for diagnosis or treatment

Short answer

Inner side of the foot, on the top edge of the heel bone below and behind the inner ankle bone.

Luo-connecting 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

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

Dazhong — 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.

Dazhong — ③ Under the skin — **③ Under the skin**
Flexor retinaculum of ankle · Calcaneus

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

On this page

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

1Where is Dazhong?

Inner side of the foot, on the top edge of the heel bone below and behind the inner ankle bone.

It is the hollow just in front of where the Achilles tendon attaches on the inner side.

Beneath the point

Flexor retinaculum of ankle · Calcaneus

Our 3D measurement · In our 3D model: skin 4 mm in front of where the Achilles tendon attaches on the inner heel bone and 3 mm above the top edge of the heel bone; 29.6 mm below and 19.1 mm behind KI3.

2How do I find it on my body?

Find Taixi (KI3).
Move down and slightly back to the upper edge of the heel bone.
Press the hollow just in front of where the Achilles tendon joins the bone.

📖 Words explained

flexor retinaculum of ankle: A tough band from the inner ankle to the heel bone. The toe-bending tendons, the posterior tibial artery and the tibial nerve pass beneath it.
posterior tibial artery: The artery running deep down the back of the calf, behind the inner ankle and into the sole. You can feel its pulse in the hollow between the inner ankle and the Achilles tendon.

3Before you press

⚠ Do not press when

The posterior tibial artery is close by — do not press hard or for long.
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 Luo-connecting point of the Kidney meridian; the Zhenjiu Jiayi Jing says a branch leaves here for the Bladder meridian — a historical classification, not a claim of effect.
The name is usually translated as 'Great Bell'.

From traditional texts — not a claim of effect.

?FAQ

Where exactly is Dazhong?

Inner side of the foot, on the top edge of the heel bone below and behind the inner ankle bone. It is the hollow just in front of where the Achilles tendon attaches on the inner side.

How do I find Dazhong?

Find Taixi (KI3). Move down and slightly back to the upper edge of the heel bone. Press the hollow just in front of where the Achilles tendon joins the bone.

What should I watch out for?

The posterior tibial artery is close by — do not press hard or for long. Avoid broken or swollen skin and press only to a comfortable level. Acupressure is not a substitute for medical care.

← PreviousTaixi · KI3 Next →Shuiquan · KI5

Sources

Location: WHO Standard Acupuncture Point Locations in the Western Pacific Region (2008), p. 137
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.