輒筋 Zhejin
“Carriage Boards and Sinew” · GB23
Foot Shaoyang · 23 of 44
Where. On the side of the chest, level with the nipple, one thumb-width in front of GB22, between ribs.
For. A full chest and sore ribs; acid reflux.
Press. Gentle fingertip pressure in the rib groove, about a minute.
輒筋，在腋下三寸，複前行一寸，著脅按 · Press with me
Six slow breaths
About a minute. Press as you breathe out, ease as you breathe in.
鄰 · Neighbouring leaves
Where Zhejin Sits on the Side of the Chest
The dataset places Zhejin on the lateral chest, one cun in front of Yuanye (GB22), level with the nipple, in the fourth intercostal space. Each clause earns its unpacking. A cun is the traditional proportional unit of Chinese point-location, taken from the person being examined rather than from any ruler — the width of your own thumb at its knuckle is the everyday approximation. Forward means toward the front of the chest, away from the spine. And the reference point, Yuanye, has its own record: it sits on the midaxillary line — the vertical line dropping from the middle of the armpit — three cun below the hollow of the armpit itself, in the same fourth intercostal space. So the search reduces to a short walk: stand on the side seam of the torso, then step one thumb-width toward the front.
What lies beneath the skin here deserves respect. The lateral chest wall is thinly covered compared with the abdomen: ribs crossed by sheets of muscle that grip and rotate them, and behind those, little else before the pleural space. This stretch of side, running from armpit down toward the lowest ribs, is exactly where the neighbouring record for Yuanye speaks plainly about the lung and pneumothorax, and Zhejin’s own caution belongs to the same family — the tradition marked this whole strip as ground where deep work is not welcome. For self-palpation the practical consequence is simple: everything worth learning here announces itself at the surface, and nothing about the search requires force.
Orientation helps before fingers start moving. Level with the nipple gives a rough horizontal guide, though body shape, age, and posture all shift how level actually looks from person to person — treat it as a hint, not a law. Counting from above works too: starting just below the collarbone and counting the soft gaps between ribs downward, the fourth gap is where this point lives. The site exists on both sides, mirror twins facing opposite ways, and comparing the two as you explore teaches the local geography faster than any description could.
A Self-Palpation Walkthrough
Sit upright on a firm chair with both feet down and the shoulders released, then rest the hand of one side on the opposite shoulder — this gently opens the armpit without tensing the chest wall. With the free hand, find the midpoint of the armpit crease and walk the fingertips down the side of the torso about three thumb-widths until they meet a soft groove crossing the ribs — the fourth intercostal space. Check the level against the nipple: your fingertips should sit roughly on that horizontal line. From there, slide one thumb-width forward, toward the front of the chest, and let the pads settle into the groove where it still feels clearly like the side of the body rather than the front. Repeat the whole search with hands swapped so both sides are learned together.
Two light confirmations help before anything more happens. First, touch feather-light and compare sides: many people notice a faint, dull awareness right at the groove and almost nothing a finger-width away, though responses vary person to person. Second, let a slow breath move through — as the ribs lift, the gap between them widens fractionally, and patient fingertips can feel it. If what lies under your fingers is the hard round edge of a rib rather than the soft span between two of them, move sideways onto the neighbouring gap and search again; the groove, not the bone, is the address.
Failed searches stumble in familiar ways. Drifting too far forward carries the fingers around onto the front of the chest, where the terrain changes character and other landmarks take over. Sliding backward instead returns you to the midaxillary line and Yuanye’s doorstep — close, but one thumb-width short. Miscounting the gaps puts you one space high or low, which is why counting down slowly from the collarbone beats guessing upward from the waist. And a tense, braced arm flattens the very grooves you are hunting; if nothing reads clearly, lower the arm, breathe out, and begin again from the armpit.
Reading the Name: Carriage Boards and Sinew
The characters carry a picture from another century of everyday life. Zhe 輒 is an old word for the flanking side boards of a horse-drawn carriage — the panels that shielded a rider’s knees — though in ordinary prose it worked as an adverb meaning always or at once. Jin 筋 means sinew: tendon, muscle, the tough elastic tissue that moves the frame. Set together and read the way generations of commentators have read it, Zhejin sets the carriage-side image onto the body itself: the smooth rounded flank of the chest wall becomes the paneled side of a vehicle, and the sweeping sinews beneath become its framework. Point names in this tradition borrow constantly from craft and landscape — gates, pools, valleys, courtyards — and this one belongs to the wheelwright’s register.
The position in the channel adds a second layer of sense. Zhejin is the twenty-third of the forty-four points the registry assigns to the gallbladder channel, a line that classical descriptions send zigzagging down the side of the head before it descends along the side of the trunk — passing exactly through this strip of lateral chest — and continues on toward the hip, the leg, and finally the fourth toe. A carriage-board name on a travelling road hardly feels accidental: the channel rides the flank of the body the way a carriage rides a highway, and this point marks one stretch of the journey where the road runs openly along the side.
Pinyin renders the name Zhéjīn: zhe rises on the second tone, jin holds the first tone high and flat. Two characters, easy to memorise at a glance, and — like many of the best point names — quietly functional. Before any theory begins, the name already tells you where you are: a side wall, and the sinews that move it. Read the name, run a fingertip down your own side, and the old word and the living body confirm each other.
Traditional Indications, Explained
The recorded indications read: fullness of the chest and hypochondriac pain, panting breath, vomiting, acid regurgitation, axillary swelling, and shoulder and arm pain. Framed as tradition rather than promise, the first pair is the point’s home ground: the hypochondrium — the rib-side, the flank between armpit and lower ribs — is exactly where Zhejin stands, and fullness meant a subjective weight or stuck oppression there, understood in the classical frame as qi failing to move freely. Panting breath was the old vocabulary for laboured, effortful breathing of various kinds, gathered under one banner long before modern respiratory categories existed.
The remaining entries follow the logic of the map. Axillary swelling sits just up the road, at the armpit this channel passes beside; shoulder and arm pain reaches further up the same classical course, since the descriptions carry the gallbladder channel across the shoulder region on its way between head and trunk. Vomiting and acid regurgitation look like strangers on a chest point until the traditional reasoning appears: classical practice understood these as qi rebelling upward, and chest-and-rib-side points were routinely consulted wherever rising counterflow troubled the upper body. None of this is physiology as modern readers meet it — it is the tradition’s own coherent geography of complaint, recorded here to explain why the old books grouped what they grouped.
It bears repeating plainly: these are the traditional uses recorded in a licensed dataset and classical literature, offered for cultural and historical understanding. They are not claims that pressing this point treats disease, and nothing here replaces assessment by a qualified clinician. 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. Persistent chest, breathing, or digestive symptoms belong with medical care first and foremost. Hold the tradition lightly; hold the safety rules firmly.
Self-Care Acupressure at Home
With the point located by the walkthrough above, settle in: seated, spine tall but unforced, the arm of the treated side resting easily. Curl the index and middle fingers together and lay the pads — not the tips — on the groove. Begin with contact alone for a few breaths, then add small, slow circles, letting the skin glide over the tissue beneath rather than grinding against the ribs. 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 on the other side, keeping the sessions symmetrical.
Quality matters more than duration. Light, patient, regularly repeated contact fits the wellness register this page practises; hard jabbing teaches the body nothing and risks the wrong kind of notice from a thinly covered chest wall. Warm cold hands before starting, because chilled muscle guards. Choose a quiet corner over a screen — the practice doubles as a standing breathing pause: inhale through the nose, feel the ribs widen under still fingertips, press gently on the long exhale. People who keep a routine often anchor it to an existing habit, morning or evening, 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 rib-side feels less guarded, perhaps breathing feels easier while you press, perhaps nothing shifts except that you spend those minutes attending to your own body. Every one of those outcomes fits the honest scope of self-acupressure. What does not fit is escalation — harder, longer, deeper to force a result, especially on a strip of chest the tradition itself flagged for gentleness. When curiosity pulls that way, return to lightness or simply stop for the day.
Cautions and Safe Practice
This point earns particular respect, and the reason is written in the licensed record itself. The dataset cautions practitioners not to work deeply here, directing professional technique obliquely or transversely — along the chest wall rather than straight inward. A tradition that spent centuries mapping every point chose, at this address, to warn its own experts off depth; that choice deserves to be read as data. The geography explains it: the lateral chest wall is thin, ribs and the pleural space lie close beneath the surface, and the neighbouring record for Yuanye names the lung and pneumothorax outright — Zhejin’s caution is the same sentence spoken one thumb-width further forward. Home self-care manages the risk the simplest possible way: it never leaves the surface.
For fingertip acupressure the rules follow from that picture. Keep pressure light and strictly superficial — the intention stays in skin and the outermost muscle, never driving inward between the ribs. Use finger pads only; no elbows, knuckles, or tools. Skip the point entirely during any acute breathing difficulty, during a feverish illness, and over broken or irritated skin; hold off altogether after recent chest injury or surgery until a clinician clears ordinary activity. Sharp, electric, or radiating sensation means stop at once and do not try again that day. Pregnant readers, and anyone living with lung or heart conditions, should consult a qualified practitioner before adding any new point practice.
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 pressure routine — for chest pain, breathlessness at rest or on mild exertion, coughing blood, a cough lasting beyond a few weeks, wheeze that will not settle, vomiting that persists or keeps worsening, or any symptom that frightens you. Persistent symptoms belong with a licensed practitioner, Western or East Asian medical as suits the complaint. The old carriage imagery is charming, but the safest gift Zhejin offers most people is a kinder acquaintance with their own rib-side, touched lightly and left alone whenever in doubt.
Zhejin — a name joining a carriage’s side boards to the sinews of the chest wall — rests on the lateral chest, one cun forward of Yuanye, level with the nipple, in the fourth intercostal space. Classical records reached for it when chest and rib-side felt blocked or painful, when breath came hard, or when the stomach rose rebelliously. This guide covers finding it by touch and pressing it gently.
Cautions from the classical sources
- Keep insertion shallow, angled obliquely or transversely.
Self-care limits
Frequently asked
- How do I find Zhejin without knowing anything about cun?
- Use the armpit and the nipple as the whole map. Rest one hand on the opposite shoulder, find the middle of the armpit crease, and walk down the side of your torso about three thumb-widths until you meet a soft groove between ribs. Check that the spot sits roughly level with the nipple, then come forward one thumb-width toward the front of the chest. As a double-check, count the rib gaps downward from the collarbone: this groove is the fourth. Cun measurements encode the same landmark walk in proportional language.
- Is pressing Zhejin myself actually safe?
- Gentle fingertip pressure held on the surface is generally reasonable self-care for healthy adults, because it engages skin and outermost muscle far short of the structures behind the ribs. The recorded danger concerns deep professional techniques that would reach inward — a category home acupressure never approaches, which is also why the dataset’s own instruction to professionals runs along the wall rather than into it. Respect the stop signals: sharp pain, radiating sensation, or discomfort that worsens all mean finish immediately.
- What did classical practice use Zhejin for?
- The traditional record lists fullness of the chest and hypochondriac pain, panting breath, vomiting, acid regurgitation, axillary swelling, and shoulder and arm pain. The grouping follows the channel map: the rib-side is the point’s home territory, and the classical frame tied rising stomach-type complaints to counterflow that chest-and-flank points were consulted for. Those are traditional frameworks for understanding the body, documented for context — not evidence-backed treatment claims.
- Why does a gallbladder-channel point live on the side of the chest?
- Classical channel theory sends the gallbladder pathway on a long journey: it zigzags down the side of the head, then descends along the side of the trunk — passing squarely through this strip of lateral chest — before continuing to the hip, down the leg, and ending at the fourth toe. Zhejin sits where that road crosses the fourth intercostal space, and its carriage-board name suits a way-station on an open stretch of road. The side of the body is simply the channel’s corridor.
- When should I skip this point entirely?
- Conservatively and often: during any acute breathing difficulty, feverish illness, or broken skin at the site; after recent chest injury or surgery, until a clinician clears normal activity; during pregnancy unless a qualified practitioner has advised otherwise; and permanently, for that day, the moment anything sharp or electric appears. Chest, breathing, or digestive symptoms that persist, recur, or escalate belong with medical assessment first — self-acupressure is a comfort practice alongside good care, never a substitute for it.
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 and channel-course context.
- 03aijiu-mpvue (MIT License) licensed dataset, entry for GB23 Zhejin — 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/gb23/leaf.json
- GET /zh-hant/points/gb23/leaf.json
- GET /zh-cn/points/gb23/leaf.json
- /llms.txt — the index of every leaf
- JSON-LD in the page: MedicalWebPage, MedicalEntity and FAQPage
{
"id": "GB23",
"name": {
"en": "Zhejin",
"gloss": "Carriage Boards and Sinew",
"zh-Hant": "輒筋",
"zh-Hans": "辄筋"
},
"channel": {
"id": "GB",
"order": 23,
"of": 44
},
"location": {
"text": "On the side of the chest, level with the nipple, one thumb-width in front of GB22, between ribs."
},
"for": [
"A full chest and sore ribs",
"acid reflux"
],
"press": {
"text": "Gentle fingertip pressure in the rib groove, about a minute.",
"seconds": 60
},
"cautions": [],
"source": "Zhenjiu Jiayi Jing, book 3",
"url": "https://acupoints.com/en/points/gb23",
"lastReviewed": "2026-08-24"
}