Pericardium MeridianPC3

Quze 曲澤

For reference only · not a substitute for diagnosis or treatment

Short answer

Front of the elbow, on the elbow crease, in the hollow on the inner (little-finger) side of the biceps tendon.

He-sea point (Water)

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

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

Quze — 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.

Quze — ③ Under the skin — **③ Under the skin**
Biceps brachii · Brachial artery · Humerus

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

On this page

Where is Quze?
How do I find it on my body?
The classical posture
Before you press
How has it been used traditionally?
Classical text
FAQ

1Where is Quze?

Front of the elbow, on the elbow crease, in the hollow on the inner (little-finger) side of the biceps tendon.

Beneath the point

Biceps brachii · Brachial artery · Humerus

Our 3D measurement · In our 3D model: at the level of the elbow crease (same level as LU5), 2.4 mm medial to the inner edge of the biceps brachii tendon.

2How do I find it on my body?

Bend the elbow to about 45 degrees.
Find the firm biceps tendon in the middle of the elbow crease.
Press the hollow on its little-finger side, on the crease.

Check · the matching hollow on the thumb side is LU5.

📖 Words explained

biceps brachii: The 'biceps' at the front of the upper arm; its two heads join on the radius to bend the elbow and turn the palm up. Bend the arm and you feel its thick tendon in the crook of the elbow.
brachial artery: The artery running down the inner upper arm. Its pulse is felt in the crook of the elbow just inside the biceps tendon, and it is where a stethoscope goes when blood pressure is measured.
median nerve: The nerve running down the middle of the arm, through the center of the palm side of the wrist into the palm. It handles feeling on the thumb-side palm and movement of the thumb muscles.

3The classical posture

Palm up, bend the elbow (the classical "bent elbow").
Find the firm biceps tendon in the middle of the elbow crease.
Press the hollow on its little-finger side, on the crease.

Check · WHO 2008 and China's GB/T 12346-2021 use an elbow bent to 45 degrees.

4Before you press

⚠ Do not press when

The brachial artery and median nerve run right beside this point.
Do not press hard or long where you feel a pulse.
Avoid broken or swollen skin and press only to a comfortable level.
Acupressure is not a substitute for medical care.
Crushing chest pain, breathlessness or a cold sweat can signal a heart emergency — call emergency services at once; do not try acupressure.

5How has it been used traditionally?

Classified as the He-sea (Water) point of the Pericardium meridian — a historical classification, not a claim of effect.
The name joins qu (bend) and ze (marsh): the hollow at the bend of the elbow.
The Song-dynasty Tongren and the Ming-dynasty Yixue Rumen both locate it with the elbow bent.

From traditional texts — not a claim of effect.

6Classical text

Donguibogam (Heo Jun, 1613), Acupuncture and Moxibustion, "Quze"

在肘內廉下陷中屈肘得之《銅人》
在肘腕內橫文中央動脈曲肘取之《入門》
手厥陰脈之所入爲合 …《銅人》

①In the hollow below the inner edge of the elbow; it is found with the elbow bent. Tongren Shuxue Zhenjiu Tujing
②In the middle of the crease on the inner elbow, where a pulse beats; take it with the elbow bent. Yixue Rumen
③Where the Hand Jueyin channel enters, which makes it the He-sea point. Tongren Shuxue Zhenjiu Tujing

Source tags as given in the Donguibogam: Tongren = Tongren Shuxue Zhenjiu Tujing (1026), Rumen = Yixue Rumen (1575).
The garbled glyph 狪 in the Wikisource text has been corrected to 肘 (elbow) in four places.
"…" marks the needling depth and moxa count, left out because they are for licensed practitioners.

Original text as written · translation is ours.

?FAQ

Where exactly is Quze?

Front of the elbow, on the elbow crease, in the hollow on the inner (little-finger) side of the biceps tendon.

How do I find Quze?

Bend the elbow to about 45 degrees. Find the firm biceps tendon in the middle of the elbow crease. Press the hollow on its little-finger side, on the crease. the matching hollow on the thumb side is LU5.

What should I watch out for?

The brachial artery and median nerve run right beside this point. Do not press hard or long where you feel a pulse. Avoid broken or swollen skin and press only to a comfortable level. Acupressure is not a substitute for medical care. Crushing chest pain, breathlessness or a cold sweat can signal a heart emergency — call emergency services at once; do not try acupressure.

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Sources

Location: WHO Standard Acupuncture Point Locations in the Western Pacific Region (2008), p. 153
Standard comparison: Chinese national standard GB/T 12346-2021 (Nomenclature and location of meridian points), p. 22
Korean anatomical terms: KMLE medical dictionary (Korean Medical Association terms)
Classification source: Lingshu ch. 2 (Ben Shu), which lists these points under 'Heart'; Nanjing ch. 64 for the phases
Posture and traditional use: Hyeoljari Seodang (Bookdramang, 2015; Korean), ch. 9 "Quze" and appendix (Yixue Rumen indications)
Classical text: Donguibogam, Acupuncture and Moxibustion, "Quze" — Wikisource public edition (garbled glyph 狪 corrected to 肘)
Indications: Yixue Rumen vol. 1 (Wikisource)
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.