Kidney MeridianKI6

Zhaohai 照海

For reference only · not a substitute for diagnosis or treatment

Short answer

Inner side of the foot, in the hollow right under the lower edge of the inner ankle bone.

Confluent point of the Yin Qiao vessel (one of the Eight Confluent Points)

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

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

Zhaohai — 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.

Zhaohai — ③ Under the skin — **③ Under the skin**
Tibialis posterior muscle · Calcaneus · Talus

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

On this page

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

1Where is Zhaohai?

Inner side of the foot, in the hollow right under the lower edge of the inner ankle bone.

It is 1 B-cun below the ankle peak and faces BL62 on the outer side of the ankle.

Beneath the point

Tibialis posterior muscle · Calcaneus · Talus

Our 3D measurement · In our 3D model: skin 1 cun (26.8 mm, foot cun) straight below the peak of the medial malleolus — 17.4 mm below its tip. No hollow shows under the malleolus on this skin, so the cun distance was used — still to be verified.

2How do I find it on my body?

Put a fingertip on the most prominent point of the inner ankle bone.
Slide straight down over its lower edge.
Press the hollow just beneath it.

Check · it is about 1 B-cun below the peak.

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

tibialis posterior: The deepest muscle in the back of the calf. It curves behind the inner ankle to the bones of the inner sole and holds up the inner arch.

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 one of the Eight Confluent Points, linked with the Yin Qiao vessel; the Zhenjiu Jiayi Jing calls it the place where that vessel arises — a historical classification, not a claim of effect.
The name is usually translated as 'Shining Sea'.

From traditional texts — not a claim of effect.

?FAQ

Where exactly is Zhaohai?

Inner side of the foot, in the hollow right under the lower edge of the inner ankle bone. It is 1 B-cun below the ankle peak and faces BL62 on the outer side of the ankle.

How do I find Zhaohai?

Put a fingertip on the most prominent point of the inner ankle bone. Slide straight down over its lower edge. Press the hollow just beneath it. it is about 1 B-cun below the peak.

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.

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Sources

Location: WHO Standard Acupuncture Point Locations in the Western Pacific Region (2008), p. 138
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 vol. 3; Donguibogam, Acupuncture and Moxibustion, eight points of the extraordinary vessels (citing Yixue Rumen)
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.