Ease off at a strong pulse; ask first if pregnant or on blood thinners.
曲澤 Quze
“Marsh at the Bend” · PC3
Hand Jueyin · 3 of 9 · he-sea
Where. On the elbow crease, just on the little-finger side of the firm biceps tendon.
For. Palpitations; stomach ache; elbow and arm pain.
Press. Gentle finger pressure, about a minute each arm.
Caution. Ease off at a strong pulse; ask first if pregnant or on blood thinners.
曲澤者，水也，在肘內廉下陷者中，屈肘得之按 · Press with me
Six slow breaths
About a minute. Press as you breathe out, ease as you breathe in.
鄰 · Neighbouring leaves
Where Quze Sits at the Front of the Elbow
Turn your left palm to the ceiling and soften your elbow, and the front of the joint offers its landmarks freely. Across it runs the cubital crease — the skin fold that deepens whenever the arm bends — and at its middle stands a firm, rounded cord: the tendon of the biceps, the familiar muscle that bulges along the front of the upper arm. The dataset places Quze at this crease, on the ulnar side of that tendon. Ulnar is the anatomist’s word for the little-finger side of the forearm, so with your palm facing up the point waits on the side of the cord toward your body, sitting on the crease itself rather than above or below it. Notice, too, what the record does not contain: no cun measurements at all. Where many points are plotted by proportional distances, this one is fixed by landmarks alone — the crease, the tendon, the side — and everything needed for the search is already visible.
What travels beneath this small stretch of skin explains why the licensed record carries a caution here. The inner elbow is a crossroads: a large vein often shows through as a soft blue line drawn across the crease; beside the tendon runs the brachial artery, the principal vessel feeding the whole arm; and just beyond the artery passes a major nerve serving much of the hand. Rest a fingertip lightly in this hollow and many people feel the artery’s business directly — a soft, rhythmic beat arriving under the pad. The dataset warns practitioners to steer clear of that artery, because piercing it can cause bleeding. Home self-care meets the same geography with a simpler answer: stay on the surface, keep pressure light, and treat any strong pulse under the finger as a signpost reading lighten, not push.
The channel story places this hollow early on a long road. Classical texts describe the pericardium channel surfacing on the chest, then descending the inner arm to finish at the centre of the tip of the middle finger; the registry counts nine points along the way. Coming down from the chest, the pathway passes Tianquan on the medial upper arm, tucked between the two heads of the biceps, and gathers into the single cord whose side Quze occupies at the elbow. Below this point the route continues along the palmar forearm, following the very line the dataset uses to plot Ximen, Jianshi, and Neiguan — measured five, three, and two cun above the wrist crease respectively — before crossing the wrist and entering the palm. At the elbow, then, Quze serves as the channel’s gateway station: the last gathering place of the upper arm and the first address of the forearm.
A Self-Palpation Walkthrough
Sit upright on a firm chair with both feet down and shoulders released. Lay your left arm on a table, palm turned to the ceiling, elbow bent only slightly — enough to relax the arm, not enough to crumple the crease. Look at the inner elbow: a crease crosses the joint, and a firm cord stands at the crease’s middle. If the cord hides, press the palm of your left hand gently upward into the tabletop for a moment; the biceps will tense and the tendon will announce itself. Now bring the pad of your right index finger to the little-finger side of that cord and let it settle onto the crease, into the soft hollow just off the tendon’s edge. That is the neighbourhood the dataset describes. Swap hands and repeat, giving the other elbow the same unhurried attention.
A few quiet confirmations help before any pressing begins. Touch feather-light and compare elbows: most people notice a faint, dull awareness at the true point and little sensation a finger-width away. Take some slow breaths and let the whole arm soften — tension buries landmarks, relaxation uncovers them. If a gentle, even pulse reaches your fingertip, welcome it: the artery that shares this corridor is introducing itself, and the correct response is lighter contact, not retreat. The aim of the search is confidence about the address, never certainty about depth; everything worthwhile here happens within the topmost layers of tissue.
Three classic misses account for most failed searches. The first is searching on the wrong side of the tendon — drifting toward the thumb, when the point keeps faithfully to the little-finger side. The second is bending the elbow fully, which wrinkles the crease into folds and hides the very landmarks being sought; a slight bend keeps the map legible. The third is pressing hard to feel more, which only floods the area with sensation and flattens the contrasts a light touch reads easily. When in doubt, straighten the arm, watch the cord reappear at the middle of the crease, and begin again — slowly, and once.
Reading the Name: Marsh at the Bend
The two characters sketch the site in miniature. Qu 曲 means bent — the fold, the crook, the very shape this joint makes whenever the hand returns toward the shoulder. Ze 澤 means a marsh: low ground where waters gather and linger, made rich by collecting whatever the currents bring. Read together, Quze is the marsh at the bend — a name that folds a piece of landscape into the elbow. Point-naming custom reserves such water imagery for places where the tradition imagined qi and blood pooling on their way, and nothing suits pooling like the wide, slowing reach of a channel arriving at its elbow.
The marsh also carries an official title. Classical teaching sorts selected points below the elbow and knee into five transport stations — well, spring, stream, river, and sea — using deepening water as the metaphor for qi gathering force as it moves inward from the fingertips. The sea stations sit nearest the elbow and knee, where the current finally joins its great reservoir; the category is known as the he-sea grouping, and Quze holds that office on the pericardium channel. The classical five-phase tables add a further layer: for the yin channels they pair the he-sea seat with water, while the pericardium channel itself belongs among the fire correspondences. Water seated upon fire — a pairing the classical writers found eloquent, and one later generations kept in view when weighing a channel’s points; it sits comfortably beside the appearance of febrile disease, the old vocabulary for heat-dominated illness, among this point’s recorded indications.
Pinyin renders the name Qūzé — a high, level first tone on qu, and a rising second tone on ze. The hanzi pair 曲澤 is short enough to memorise at a glance, and like many points named for landscape — gates, valleys, seas, marshes — the metaphor does real work: it says the tradition treats this spot as a place of gathering and settling, a wetland where the current broadens, rather than a rapids things race through. The name is itself a small set of instructions about tempo: arrive slowly, pool a while, move on.
Traditional Indications, Explained
The recorded indications read: cardiac pain, palpitations, stomachache, vomiting, diarrhea, spasmodic pain of the elbow and arm, and febrile disease. The first two entries come straight from the point’s master. Classical teaching gave the pericardium the office of the heart’s protective envelope — the membrane standing between the heart and the outside world — and the channel bearing that name was reached whenever the chest spoke of distress. Discomfort in the heart region, and the fluttering, knocking awareness the records call palpitations, therefore dominate this channel’s historic portfolio, with Quze, as its he-sea station, standing among the customary choices discussed in classical literature.
The stomach entries look further afield until the classical map is consulted. Alongside the pathway the texts trace down the limb, they describe deeper courses of the pericardium system passing down through the trunk, and traditional commentary linked the chest envelope with the middle burner — the digestive hearth of classical physiology. On that reading, stomachache, vomiting, and diarrhea belonged to discussions of this channel, and Quze’s watery nature kept it part of the conversation. The remaining entries obey plainer logic: spasmodic pain of the elbow and arm is the local entry, recorded for the very joint the point inhabits, while febrile disease answers the marsh-and-water theme — when heat signs dominated a picture, classical practice reached toward watery imagery and water-assigned stations.
It bears repeating plainly: these are the traditional uses recorded in a licensed dataset and classical literature, offered here for cultural and historical understanding. They are not claims that pressing this point treats disease, and several — cardiac pain above all — belong squarely with emergency medicine today, whatever the old books discussed. Where modern research touches self-applied pressure at all, reviews suggest effects are modest and context-dependent, and evidence specific to any single point remains thin. Hold the tradition lightly, and hold the safety rules firmly.
Self-Care Acupressure at Home
With the hollow found by the walkthrough above, settle in: seated, left arm resting palm-up on a table or thigh, elbow softly bent. Place the pads of your index and middle fingers together on the spot — never the pointed tips, always the broader, kinder pads. Begin with simple contact for a few breaths, then add small, slow circles, letting the skin glide over the tissue beneath rather than grinding onto the tendon. Pressure should register as pleasant dullness or mild warmth, never sharpness. A common home rhythm is one to three minutes per side, once or twice daily, matched where possible to slow exhales so each circle rides the breath out. Swap hands and repeat, keeping the two sessions symmetrical.
Quality matters more than duration. Light, patient, regularly repeated contact fits the wellness register this page practises; hard jabbing causes harm and teaches the body nothing. Warm cold hands first, because chilled muscle guards. Choose a quiet corner over a screen, since the practice doubles as a pause: inhale through the nose, notice the elbow softening under still fingers, press gently on the long exhale — and if a strong pulse knocks under the pads, lighten until the beat fades from attention. People who keep a routine often anchor it to an existing habit — morning washing, an afternoon stretch — because consistency, not intensity, is what self-care traditions actually ask for.
Treat the exercise as a small ceremony of attention rather than a treatment session. Notice what changes across weeks: perhaps the elbow feels less guarded when it bends, perhaps warmth spreads while you press, perhaps nothing shifts except that you spend ninety seconds attending to your own arm. Every one of those outcomes fits the honest scope of self-acupressure. What does not fit is escalation — pressing harder, longer, or deeper to force a result. When curiosity pulls that way, return to gentleness or simply stop for the day.
Cautions and Safe Practice
This point earns its extra respect honestly. The licensed record carries a caution written for Quze specifically: avoid the artery when needling, because piercing it may cause bleeding. The warning simply describes the neighbourhood — the brachial artery travels the inner elbow pressed close beside the biceps tendon, a large vein is drawn across the crease above, and a major nerve passes just beyond the vessel. Professional training manages those neighbours with exact technique and deliberate site selection; home self-care manages them differently and far more safely, by never leaving the surface at all. Light fingertip contact engages skin and the shallowest tissue only, far short of anything the caution contemplates.
The practical rules follow plainly. Use finger pads only — no elbows, knuckles, or tools — and keep pressure light enough that you could hold an unhurried conversation throughout. If a firm pulse beats under your pad, ease off until it quiets; the beat is information, not an invitation. Skip the point entirely over broken, irritated, or recently bruised skin, and give a freshly injured elbow a wide berth until healing is underway. Anyone who bruises easily, lives with a bleeding disorder, or takes blood-thinning medication should ask a qualified practitioner before adding pressure work at this vascular crossroads; pregnant readers should do the same before starting any new point practice. Sharp, electric, or radiating sensation means stop at once and do not try again that day.
And the wider rule stands over everything: this page is educational, and acupressure is self-care, not diagnosis or therapy. Seek prompt medical care — not a longer pressing session — for chest pain or a feeling of pressure in the chest, for palpitations accompanied by dizziness, fainting, or breathlessness, for fever, for vomiting or diarrhea that persists, worsens, or arrives with signs of dehydration, and for any elbow that is swollen, numb, weak, or refusing to settle after an injury. Persistent symptoms belong with a licensed practitioner, physician or East Asian medicine provider as suits the complaint. The marsh imagery is tranquil, but the safest gift Quze offers most people is a calmer acquaintance with their own elbow, treated kindly.
At the front of the elbow, where the arm folds and a firm cord rises at the middle of the crease, Quze waits on the little-finger side of that cord. Classical practice named it the Marsh at the Bend, picturing the pericardium channel’s flow pooling there as water gathers in low ground. This guide walks through finding it by touch and pressing it gently and safely.
Cautions from the classical sources
- Keep clear of the artery; piercing it can cause bleeding.
Self-care limits
Frequently asked
- How do I find Quze without measuring anything?
- You barely need a map. Turn the palm up, bend the elbow a little, and look: a crease crosses the inner elbow, and a firm cord stands at its middle. Settle a fingertip onto the crease on the little-finger side of that cord, just off the tendon’s edge. The dataset locates this point by landmarks alone — no cun figures appear in its record — so your eyes and one fingertip carry every coordinate required.
- Is pressing Quze myself actually safe?
- For healthy adults, gentle fingertip pressure held on the surface is generally reasonable self-care, because it engages skin and superficial tissue far short of the vessels and nerves this hollow shelters. The recorded danger concerns deep professional techniques near the artery — a category home acupressure never approaches. Keep to finger pads, keep pressure light, step aside from any strong pulse, and respect the stop signals: sharp, electric, or radiating sensation ends the session immediately.
- What did classical practice use Quze for?
- The traditional record lists cardiac pain, palpitations, stomachache, vomiting, diarrhea, spasmodic pain of the elbow and arm, and febrile disease. Classical texts describe Quze as the he-sea station of the pericardium channel — the marsh where the channel’s flow gathers at the bend of the elbow — which is why chest complaints lead its historic portfolio and digestive entries follow on the classical map. Those are traditional frameworks for understanding the body, documented for context — not evidence-backed treatment claims.
- Why does a pericardium point appear in discussions of stomach trouble?
- Through the classical map rather than through local anatomy. The texts trace deeper courses of the pericardium system down through the trunk, and traditional commentary connected the chest envelope with the middle burner, the digestive centre of classical physiology. On that reading the stomach entries sit naturally beside the chest ones. It is a reminder that classical selection worked from the whole pathway, not from the patch of skin a point occupies — a way of thinking worth understanding even where modern readers decline its conclusions.
- Can acupressure at Quze take the place of seeing a doctor about palpitations?
- No, and on this point there is no room for negotiation. Palpitations with dizziness, fainting, chest pain, or breathlessness call for urgent medical assessment now, and ongoing palpitations deserve a scheduled professional evaluation regardless of how gentle a self-care routine feels. Think of the two as a smoke alarm and a fire brigade: daily comfort practices belong to the quiet mornings, and clinical medicine exists for the days the alarm sounds. Neither substitutes for the other, and knowing which kind of day it is matters more than any technique.
Sources
- 01WHO Standard Acupuncture Point Locations in the Western Pacific Region (2008), World Health Organization — nomenclature conventions.
- 02A Manual of Acupuncture, Peter Deadman, Mazin Al-Khafaji and Kevin Baker — point-name tradition, he-sea theory, and channel context.
- 03aijiu-mpvue (MIT License) licensed dataset, entry for PC3 Quze — location, point class, actions, and caution record.
Last reviewed
牌記This leaf, for machines
Old books ended with a colophon saying who printed them. Every leaf here carries the same facts as structured data for agents and search, with no layout in the way.
- GET /en/points/pc3/leaf.json
- GET /zh-hant/points/pc3/leaf.json
- GET /zh-cn/points/pc3/leaf.json
- /llms.txt — the index of every leaf
- JSON-LD in the page: MedicalWebPage, MedicalEntity and FAQPage
{
"id": "PC3",
"name": {
"en": "Quze",
"gloss": "Marsh at the Bend",
"zh-Hant": "曲澤",
"zh-Hans": "曲泽"
},
"channel": {
"id": "PC",
"order": 3,
"of": 9
},
"location": {
"text": "On the elbow crease, just on the little-finger side of the firm biceps tendon."
},
"for": [
"palpitations",
"stomach ache",
"elbow and arm pain"
],
"press": {
"text": "Gentle finger pressure, about a minute each arm.",
"seconds": 60,
"sides": "both"
},
"cautions": [
"Ease off at a strong pulse; ask first if pregnant or on blood thinners."
],
"source": "Zhenjiu Jiayi Jing, book 3",
"url": "https://acupoints.com/en/points/pc3",
"lastReviewed": "2026-08-24"
}