Acupoints0
Chinese text direction

It sits on the wrist pulse; keep the touch light.

Leaf 9 of 11 · Hand Taiyin
太淵

太淵 Taiyuan

“Great Abyss” · LU9

Hand Taiyin · 9 of 11 · shu-stream, yuan-source, eight-influential point of the vessel

Where. At the thumb end of the inner wrist crease, where you feel the pulse.

For. Cough, wheezing, wrist pain.

Press. Light touch, about a minute each wrist, without pressing the pulse flat.

Caution. It sits on the wrist pulse; keep the touch light.

Traditional Uses: What Classical Lists Assign Here

Open any traditional compilation and the entries repeat familiar themes. Taiyuan is traditionally used for cough and for asthma — breath complaints lying closest to the Lung meridian’s home territory. Within the system the logic is straightforward: a source point of the lung channel offered a direct route to the channel’s own organ, and wrist-level points on this meridian appear again and again in classical formulas assembled for disordered breathing.

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太淵者,土也。在掌後陷者中
“Taiyuan is the earth point. It lies in the hollow behind the palm.”《針灸甲乙經·卷三》 Zhenjiu Jiayi Jing, book 3
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0 / 6breaths

按 · Press with me

Six slow breaths

About a minute. Press as you breathe out, ease as you breathe in.

鄰 · Neighbouring leaves

Locating Taiyuan: A Point You Can Feel Before You Find

Turn your left palm towards the ceiling and let the whole hand go soft — fingers curling slightly, nothing braced. Look at the crease where the palm folds into the wrist. Trace it from the little-finger side all the way across until it ends, on the thumb side, in a shallow hollow tucked between the cord of tendon at the wrist and the mound of the thumb. Rest the pad of your index finger there, barely touching, and you will usually meet the unmistakable rolling of the radial artery directly beneath. The dataset locates the point exactly there: on the radial end of the palmar wrist crease, where the pulse of the radial artery is palpable.

Two neighbours help you confirm the spot. Slide one thumb-width up the forearm, staying on the line that runs from this hollow toward the elbow crease, and you arrive near Jingqu, LU8, which occupies its own hollow beside the same artery. Come back down and move onto the fleshy mound below the crease, behind the knuckle of the thumb, and that is Yuji, LU10. Taiyuan belongs to neither place: it sits precisely at the crease itself, in the depression where the wrist bone beneath — the scaphoid — leaves just enough room for a fingertip.

Because the channel runs bilaterally, every wrist carries its own copy of the point. Compare the two sides and you may notice the pulse feels stronger or livelier on one; practitioners of old read such differences carefully. For self-care there is no need to judge. Simply note where the beat is easiest to feel, begin there, and give the other wrist equal time when you finish.

The Name: Tai, Great; Yuan, a Deep Pool

The characters sketch a small landscape. Tai (太) means great, vast, supreme — a character classical writers reached for when naming things of abundance. Yuan (淵) is a deep pool or abyss: not a rushing stream but water gathered somewhere sheltered, still, dark, and unexpectedly deep. Set together, Taiyuan is conventionally rendered the Great Abyss — a strikingly poetic name for a hollow barely wide enough for a fingertip.

The image suits both anatomy and tradition at once. Here the channel’s flow was imagined to collect and deepen, the way a river slows and pools before passing through the narrow gorge of the wrist. And directly beneath the hollow runs the radial artery, whose beat generations of physicians learned to read precisely at this spot. A name of deep, gathered water for one of the few places where the pulse rises so close to the surface at the wrist: the poetry is doing careful work.

Three Classical Roles in One Small Hollow

Taiyuan wears three classical hats, and each shapes how the tradition thinks about it. First, it is the yuan-source point of the Lung meridian — the spot where the channel’s own vitality was understood to surface most plainly. Classical teaching treats source points as windows onto their channel as a whole, and practice reaches for them when the channel itself seems depleted or unsettled rather than when a single symptom stands alone.

Second, it belongs to the five transport points along the channel, where classical imagery describes qi flowing ever deeper, like water moving from a well toward the sea. Taiyuan takes the stream position, and in the five-phase scheme it carries the earth phase of a metal channel — a pairing commentators traditionally read as a mother supporting her child, which made this a natural candidate whenever the intent was to reinforce and nourish rather than disperse.

Third, and most distinctively, classical texts name Taiyuan as the influential meeting point of the vessels — the single place associated with mai, the vessels and the pulse, said to converge. That is why the same point that serves the breath also appears in classical lists for absence of pulse, and why the traditional pulse-taking region at the wrist, the cunkou, sits exactly here. One hollow, three roles: window onto the channel, stream-and-earth station, gathering ground of the vessels.

Traditional Uses: What Classical Lists Assign Here

Open any traditional compilation and the entries repeat familiar themes. Taiyuan is traditionally used for cough and for asthma — breath complaints lying closest to the Lung meridian’s home territory. Within the system the logic is straightforward: a source point of the lung channel offered a direct route to the channel’s own organ, and wrist-level points on this meridian appear again and again in classical formulas assembled for disordered breathing.

Less expected to modern eyes is the listing for absence of pulse. Inside the vessel-meeting framework this follows naturally: if the vessels were held to gather at Taiyuan, then a pulse grown faint or hard to find was a concern classical practice addressed precisely here, and the dataset preserves the pairing unchanged. Alongside it stand the plainly local complaints — pain of the wrist and arm along the channel’s course — plus one further traditional entry, hiccups, a reminder that the tradition treated the point as reaching wherever rebellious rising qi was blamed.

It bears repeating that these are traditional assignments, recorded and handed down within the classical framework rather than conclusions of modern clinical research. Where contemporary reviews have examined related practices they suggest, at most, tentative and mixed findings in some contexts — one reason this page describes the tradition faithfully while keeping claims deliberately modest.

Self-Care Acupressure: A Quiet, Breath-Paced Practice

Choose a moment when you can sit upright without hurrying. Rest your forearm on a table or cushion, palm facing up, and let the wrist hang easy rather than bent. Shake the hand out once or twice; a tense forearm dulls sensation everywhere. Find the hollow at the thumb-side end of the wrist crease as described above, and lay the pad of your index or middle finger just beside the pulse — on the thumb side of the beat, not squarely on top of it.

Begin with contact lighter than you think necessary: enough to feel warmth and texture, not enough to flatten anything underneath. Let the pressure grow only to the edge of comfortable awareness and stay there. Rather than jabbing or kneading, make slow, small circles — or simply lean in and hold, letting each exhale soften the wrist a little more. Match the rhythm to your breathing: settle on the inhale, ease a fraction deeper on the exhale. Three to five slow breaths make a complete round; then lift away entirely, notice how the spot feels, and repeat once or twice more.

Finish by giving the other wrist its turn, even if its pulse feels quieter. Many people like to close by cradling the whole wrist in the opposite hand for a moment while the shoulders drop — the gesture matters less than the pause. Practised briefly and regularly, this is the entire method: find, touch lightly, breathe, release. There is no intensity to chase and nothing to endure; the tradition prizes the opposite — steadiness, gentleness, attention.

Cautions: Respecting the Artery Beneath

The most important fact about this site is stated plainly in the dataset’s own caution: the radial artery runs here, and everything done at Taiyuan must respect it. The recorded warning addresses professional practice at this pulse-bearing location; the self-care equivalent is simpler — remain on the surface, favour the thumb-side hollow just beside the beat, and never bear down on the pulsation itself. Light contact asks almost nothing of the vessel, and heavy pressure at a pulse point has no place in a practice built on gentleness.

Set the practice aside altogether when the wrist is injured or unwell — recent sprains or fractures, broken or inflamed skin, marked swelling, or pain that movement already provokes. People with impaired circulation in the hands, a diagnosis affecting the arteries, or those taking blood-thinning medication do better to ask a clinician before adding pressure work at a pulse site. During pregnancy it is always reasonable to keep self-acupressure minimal and clear any new practice with a qualified practitioner first.

Stop immediately if anything sharpens: sudden pain, tingling or numbness spreading into the fingers, dizziness, or a sense of the hand going cold. Discomfort that lingers after you stop signals pressure beyond comfort, not effectiveness. And the standing rule of this site applies everywhere on these pages: acupressure is educational self-care, not treatment of disease. A cough or breathlessness that persists, a wrist that will not settle, or any change in the pulse itself deserves assessment by a licensed practitioner — promptly, without waiting for self-care to succeed.

In short

At the thumb-side end of your wrist crease, just beside the beat of the radial artery, lies Taiyuan — the Lung meridian’s source point. Classical practice traditionally turned to it for coughs, laboured breathing, quiet pulses, and aching wrists; today it offers one of the gentlest invitations to self-acupressure anywhere on the body.

Cautions from the classical sources

  • Keep clear of the radial artery: push it aside and insert on its lateral side.

Self-care limits

Self-acupressure at Taiyuan stays light and surface-level beside the radial artery — never press firmly on the pulse itself. Skip practice with wrist injury, skin damage, or swelling; check with a clinician first if circulation is impaired, arteries are affected, or blood-thinners are used. Stop on sharp pain, numbness, dizziness, or a cold hand, and bring persistent symptoms to a licensed practitioner. Self-acupressure is educational self-care, not medical care. Stop if a sensation becomes sharp, and seek professional help for persistent symptoms.

Frequently asked

How do I tell the difference between the point and the artery?
Feel first, then aim beside. Rest your fingertip where the beat is strongest and simply acknowledge it — that rolling sensation is the radial artery. The point’s hollow sits at the very end of the wrist crease, just thumb-ward of the beat. For self-acupressure, park your finger in the space next to the pulse rather than on it, and keep the touch light enough that the beat still reaches you clearly.
Is it actually safe to press anywhere near a pulse?
Light, brief, surface-level contact at the wrist is well tolerated for most healthy people — you touch this area constantly in ordinary life. What to avoid is firm, prolonged, digging pressure applied straight onto the artery, which serves no purpose in acupressure and is exactly what the dataset’s caution guards against in professional hands. If your circulation is compromised, you take blood-thinning medication, or anything about the pulse feels unusual to you, ask a clinician first.
How often can I practise, and for how long each time?
Short and regular beats long and rare. A minute or two per wrist, once or twice a day, is plenty; many people attach the habit to something they already do daily, like morning tea. There is no cumulative target to hit and no schedule to protect — on a day the wrist feels tender or you feel unwell, simply skip it and resume tomorrow.
How is Taiyuan different from other wrist points on the lung channel?
The channel threads the whole forearm, and several of its points cluster near the wrist, each with its own classical job: Lieque, LU7, sits higher on the forearm and appears in traditional texts chiefly for head and neck complaints; Jingqu, LU8, occupies a hollow one thumb-width above the crease; Yuji, LU10, lies on the thumb mound behind the knuckle. Taiyuan’s distinction is being the source point at the crease itself — the channel’s window — and the classical meeting place of the vessels.
When should self-care stop and a professional take over?
Whenever a complaint persists, worsens, or simply fails to respond after a fair stretch of honest practice. A lingering cough, any breathlessness, wrist pain that limits daily use, or a pulse that seems changed, weak, or irregular are all reasons to see a licensed practitioner — some of them promptly. Self-acupressure complements care; it never substitutes for diagnosis, and nothing on this page should delay one.

Sources

  1. 01aijiu-mpvue (MIT License) — dataset witness behind this entry’s location wording, point categories, and recorded indications.
  2. 02WHO Standard Acupuncture Point Locations in the Western Pacific Region (2008) — nomenclature conventions.
  3. 03A Manual of Acupuncture (Deadman) — general classical context on source points and the vessel meeting, consulted without quotation.

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.

{
  "id": "LU9",
  "name": {
    "en": "Taiyuan",
    "gloss": "Great Abyss",
    "zh-Hant": "太淵",
    "zh-Hans": "太渊"
  },
  "channel": {
    "id": "LU",
    "order": 9,
    "of": 11
  },
  "location": {
    "text": "At the thumb end of the inner wrist crease, where you feel the pulse."
  },
  "for": [
    "cough",
    "wheezing",
    "wrist pain"
  ],
  "press": {
    "text": "Light touch, about a minute each wrist, without pressing the pulse flat.",
    "seconds": 60
  },
  "cautions": [
    "It sits on the wrist pulse; keep the touch light."
  ],
  "source": "Zhenjiu Jiayi Jing, book 3",
  "url": "https://acupoints.com/en/points/lu9",
  "lastReviewed": "2026-08-24"
}