Fainting or collapse needs emergency help; call for it first.
水溝 Shuigou
“Water Ditch” · GV26
Governing Vessel · 26 of 28 · crossing-point
Where. In the groove between the nose and the upper lip, a third of the way down from the nose.
For. Fainting, a stiff aching lower back.
Press. Gentle but steady with a fingertip, about a minute.
Caution. Fainting or collapse needs emergency help; call for it first.
水溝,在鼻柱下人中按 · Press with me
Six slow breaths
About a minute. Press as you breathe out, ease as you breathe in.
鄰 · Neighbouring leaves
Where Shuigou Sits on the Face
The philtrum is one of the most familiar small features of the human face, even if most people never think to name it: the vertical groove that runs from the base of the nose down to the edge of the upper lip. Shuigou lives inside it. The dataset places the point on the face, at the junction of the upper third and middle third of the philtrum groove — in plainer terms, about one-third of the way down from where the groove begins beneath the nose. The governing vessel, the du channel this point serves, is described in the site’s meridian records as running up the midline of the back and head; classical channel maps simply continue the line onward, descending the forehead, following the bridge of the nose to its tip, and arriving in this groove before ending inside the upper lip. Shuigou therefore sits on the final stretch of a very long midline journey.
The ground beneath the fingertips is uncomplicated country. The skin of the philtrum is thin, and just beneath it lie the small muscle fibres that ring the mouth; below those rises the firm bone of the upper jaw, close enough to the surface to give every touch a solid floor. Because the groove occupies the body’s central seam, this is a single midline point — no left-and-right pair to hunt for, one address shared equally by both halves of the face. All of this makes the area welcoming to cautious, superficial contact while offering no excuse whatsoever for force: whatever the tradition discussed at this station, home practice engages nothing deeper than skin and the doorstep of the muscle.
A glance at the neighbourhood map helps fix the position. Upward, the groove gives onto the base of the nose, and at the very centre of the nose tip the record stations Suliao (GV25). Downward, the groove runs out at the vermilion border, and at the tip of the upper lip, where skin meets red lip, sits Duiduan (GV27). Shuigou holds the stretch between them, which is why precision matters more than usual: the whole corridor from the base of the nose to the lip spans barely a couple of thumb-widths on an adult face, so the difference between the upper-third junction and the groove’s midpoint is a matter of millimetres. Teachers of point location accordingly lean on proportional division rather than guesswork — divide the groove into three equal parts, and take the boundary between the first and the second.
A Self-Palpation Walkthrough
Set yourself up in front of a mirror with clean hands, seated comfortably, face relaxed. Find the groove first: look straight ahead and trace the shallow vertical channel that descends from just under your nose to the pink edge of your upper lip. Establish its top clearly — the point where the groove begins, directly beneath the partition between the nostrils — and its bottom, where the skin of the face yields to the red of the lip. Now imagine that line divided into three equal parts. Rest the pad of your clean index finger in the groove and walk it slowly downward from the top; the spot you want is where the first segment ends and the second begins, usually where the groove feels at its deepest and most defined. Settle the pad there and stay still a moment, letting the finger learn the little valley it rests in.
A few quiet confirmations repay the habit. Compare by feather-light touches: many people notice a faint, dull awareness at the genuine site and almost nothing a few millimetres away in either direction. Slide the fingertip gently up and down the groove and feel it deepen and narrow toward the middle third — the true location keeps company with the deepest stretch, not with the shallows near nose or lip. Check the seam: the point belongs to the centre line of the face, aligned with the nose and the middle of the upper lip, not drifted toward either pillar of the groove. And notice the stillness — unlike chest or belly, the face barely stirs through slow breathing, so what you feel is stable ground.
Three missteps account for nearly every failed search here. The first is landing too low, in the final stretch where the groove fades into lip; the second is drifting too high, toward the base of the nose where the channel widens. Counting the thirds aloud, or marking the groove’s start and end mentally before dividing, prevents both. Third comes technique: fingernails, or a fingertip pressed hard enough to blanch the skin, teach nothing and feel unpleasant besides. If doubt survives all corrections, humility beats bravado — settle for the general region, keep any contact extremely light, and leave fine distinctions to trained hands.
Reading the Name: Water Ditch
Few point names describe their ground as literally as this one. Shui 水 means water — among the oldest characters in the language, begun as a simple drawing of flowing liquid, its central stream flanked by moving drops. Gou 溝 means ditch, trench, or narrow waterway — a channel cut to carry water where people want it; the character pairs the water radical with a phonetic marker, and its simplified form 沟 swaps in a lighter phonetic with the same sound and sense. Joined, Shuigou reads as the Water Ditch: the vertical groove between nose and lip, seen by the namers as a tiny canal. It is the kind of naming that needs no commentary — the tradition looked at a face, noticed the small channel that carries nothing but shape and shade, and gave it the honest name of a ditch.
Pinyin writes the name Shuǐgōu, and a dictionary settles each syllable: shui rides the third tone, the dipping fall-and-rise that English speakers sometimes mimic with a questioning lilt, while gou holds the first tone, high and level throughout. The point answers to a second name as well, one many readers may already know: Renzhong 人中, the Centre of the Human, with ren in the rising second tone and zhong in the level first tone. Old commentators enjoyed explaining that centre with arithmetic — counting the body’s paired openings above the groove and its unpaired ones below, and reading the point as the hinge between them. Whether or not anyone adopts the old bookkeeping, the alias documents how seriously the tradition took this modest groove: two names, both centuries deep, for one small channel of skin.
The dataset files Shuigou under a special class: crossing-point. In the traditional map, that label marks a station where pathways exchange — and classical teaching describes the governing vessel trading routes with the yangming channels of hand and foot in this neighbourhood of the face. A hub where several lines meet collects a varied caseload, and the point’s recorded portfolio ranges far beyond its own few centimetres of real estate, reaching from the mind to the mouth to the small of the back. Once again the pattern repeats across this layer: geography doing the work that titles do elsewhere, a crossroads explaining a reputation.
Traditional Indications, Explained
The gravest entries come first, because they demand the clearest voice. The record gathers fainting, coma — named outright as a principal first-aid emergency point — heat stroke, stroke, and low blood pressure. Read as history, these lines show where premodern medicine stationed its hopes in moments of collapse: the visible, central groove on the face became the address physicians reached for first, and generations of case literature grew around that choice. Read as advice for today, they say something else entirely: fainting, suspected stroke, and heat illness are medical emergencies, and the correct modern first response is to summon emergency services, check breathing, and follow first-aid training — not to reach for a pressure point. The dataset preserves the old station; this page repeats it so that nobody mistakes an archive for an instruction. Nothing on a wellness page substitutes for an ambulance.
A second family concerns the mind: mania, epilepsy, and hysteria, filed together as the old records grouped severe disturbances of mood, consciousness, and behaviour. These listings document classification, not capability — they show how premodern texts organised experiences they had no modern vocabulary for. Epileptic seizures today remain emergency events managed with first aid: protect the person from injury, cushion the head, place nothing in the mouth, note the time, and get help. Mania and conditions once called hysteria belong with physicians and mental-health professionals. The point’s appearance beside them is a fact about the history of medicine, offered here for understanding.
The local entries concern the mouth and face themselves: deviation of the mouth and lockjaw. Within the channel logic, these sit squarely in home territory — a midline station on the face presiding over the structures it overlooks. One entry deserves a deliberate modern aside: sudden deviation of the mouth — one side of the face drooping or refusing to move — is recognised today as a warning sign of stroke, and the response it calls for is an immediate emergency call, not self-care of any kind. Long-standing facial asymmetry with a known cause is a different matter and a clinician’s conversation; sudden change is always an alarm.
Then comes the entry that surprises everyone: stiff painful lower back. Why would a point on the face share a page with the small of the back? The traditional answer runs straight down the midline: the governing vessel travels both territories, climbing from the pelvis along the spine to the head and descending the face into this groove, so classical reasoning treated the two ends of one line as conversant with each other, and practice reached for the face station in discussions of midline back stiffness. It is elegant map-thinking, documented here as tradition rather than demonstrated remedy — where research touches self-applied pressure at all, reviews suggest modest, heavily context-dependent effects, and evidence tied to any single point stays thin. Persistent back pain deserves assessment first; whatever gentle routine accompanies it should follow, not lead.
Self-Care Acupressure at Home
With the location settled, arrange the ritual. Wash your hands — the face deserves clean fingers — and sit comfortably, perhaps before a mirror so the eye can help the fingertip. Rest the soft pad of the index finger in the groove at the chosen spot and begin with contact alone: a few unhurried breaths of simple, weightless touching. Then add movement if it pleases you — small, slow circles no wider than the groove itself, or a steady, feather-light hold. Sensation should register as mild dullness, warmth, or a pleasant tingling awareness, never sharpness. A common home rhythm is one to three minutes at a sitting, once or twice daily, timed to slow exhales so the pressure seems to ride the breath out. Being a single midline point, Shuigou asks no left-right swap; the session is one groove, attended quietly.
Quality outranks duration, here more than anywhere. The face is expressive country: tension in the hand reads instantly in the brow, and pressure hard enough to distort the mouth defeats the purpose of a calming pause. Warm hands, trimmed nails, and a quiet corner beat any gadget. People who keep the habit tend to tether it to an existing moment — after washing the face in the morning, during the afternoon lull, before sleep — because regularity, not intensity, is what self-care traditions actually request. Across some weeks, notice honestly what changes: perhaps the practice simply becomes a daily minute of stillness in a loud day, and that outcome fits the honest scope of self-acupressure perfectly well.
Escalation is the thing to decline. Digging with a nail, kneading the lip, pinching the groove, or pressing until the skin aches buys nothing worth having on tissue this thin. If curiosity pulls toward force, return to gentleness or close the day’s practice altogether. Should any session produce sharp pain, numbness, or anything unexpected, stop at once and let the day end there. Gentle, brief, repeated: the entire method fits in three words, and the practice deserves roughly the space of a bookmark in a well-lived week.
Cautions and Safe Practice
The licensed dataset records no caution specific to Shuigou — the caution fields stand empty for this entry, and this page echoes that empty record exactly, as policy requires. An empty field describes paperwork, not invulnerability. The face is delicate real estate: skin thin enough to show every degree of pressure, muscle close beneath, bone closer still, and the entrances of nose and mouth within reach of a careless finger. Everything on this page therefore stays strictly superficial — the pad of a finger resting on the groove, intention no deeper than the skin’s doorstep, no nails, no tools, no devices, and no pressing that sets out to accomplish something inward.
Sensible exclusions keep the routine uneventful. Skip the point entirely over broken, chapped, sunburned, or otherwise irritated skin, during an active cold sore anywhere near the mouth or nose, and after recent facial injury, surgery, or dental work around the upper lip until a clinician clears ordinary activity. Set practice aside during feverish or acute illness. Pregnant readers, as everywhere on this site, are asked to consult a qualified practitioner before adding new point practices; structured routines for children deserve a preliminary conversation with a paediatric clinician, though an ordinary affectionate touch harms no one. And the stop signals stay absolute: sharp pain, numbness, or any odd sensation ends the day’s practice, every time.
Over everything stands the shared rule of the site: this page educates; it does not diagnose or treat. Seek prompt medical care — not a longer pressing session — for fainting or repeated fainting spells, sudden facial drooping or weakness, slurred speech, chest pain, breathlessness, signs of heat illness, or any symptom that frightens you. Persistent complaints belong with licensed clinicians — Western or East Asian practitioners as the complaint suggests — who can examine, diagnose, and treat within their competence. The Water Ditch offers most visitors a small, honest gift: a minute of stillness, a better acquaintance with a familiar groove, and the quiet satisfaction of knowing exactly where on the face one of the tradition’s most storied addresses sits.
Shuigou, the Water Ditch, takes its name plainly: the small vertical groove between nose and upper lip. The point sits partway down that channel, where its upper third hands off to its middle third. Classical practice kept this address for talk of collapse and fainting, and for stiff, painful lower backs. This guide walks through finding it by touch and pressing it gently.
Self-care limits
Frequently asked
- How do I find the exact spot without measuring anything?
- Divide by eye instead of by ruler. Identify the top of the groove beneath the partition between the nostrils and the bottom where the lip’s red begins, picture three equal segments between them, and take the boundary between the first and the second. On most faces that junction lands close to where the groove feels deepest — a cross-check the fingertip confirms better than any instrument.
- Is it really safe to press so close to the mouth and nose?
- Feather-light fingertip contact on intact skin is generally reasonable self-care for healthy adults; the practice engages nothing deeper than skin and the surface of the muscle beneath. Clean hands matter more than usual here, since the fingers work beside the mouth. Respect the exclusions — broken or irritated skin, active cold sores, recent facial procedures — and the stop signals: sharpness, numbness, or worsening discomfort all mean finish immediately.
- The record calls this a principal first-aid emergency point — what does that mean for me?
- It means the old literature stationed great hope at this address when people collapsed, and the dataset preserves that history faithfully. It does not instruct anyone to manage emergencies by pressing a point. Modern first aid for fainting or suspected stroke runs through checking responsiveness and breathing, calling emergency services, and following training. Treat the label as a museum plaque: accurate to the tradition, and not a procedure.
- How can a point on the face appear in discussions about a stiff lower back?
- Through the midline logic of the governing vessel, the channel this point serves. Classical maps draw one continuous line from the pelvis up the spine, over the head, and down the face into the philtrum, so the tradition treated both ends of the line as connected and reached for the face station when midline back stiffness dominated a discussion. It is elegant traditional reasoning — presented here for understanding, not as a demonstrated remedy.
- If someone faints in front of me, should I press their philtrum?
- No — press for help instead. Lay the person down safely, check breathing and responsiveness, loosen tight clothing, and call emergency services if consciousness does not return promptly or breathing seems wrong; follow standard recovery-position training where appropriate. The tradition’s fondness for this point belongs to its history, and honouring that history means not mistaking it for a modern emergency procedure.
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, du-vessel context, and classical indication history.
- 03aijiu-mpvue (MIT License) licensed dataset, entry for GV26 Shuigou — 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/gv26/leaf.json
- GET /zh-hant/points/gv26/leaf.json
- GET /zh-cn/points/gv26/leaf.json
- /llms.txt — the index of every leaf
- JSON-LD in the page: MedicalWebPage, MedicalEntity and FAQPage
{
"id": "GV26",
"name": {
"en": "Shuigou",
"gloss": "Water Ditch",
"zh-Hant": "水溝",
"zh-Hans": "水沟"
},
"channel": {
"id": "GV",
"order": 26,
"of": 28
},
"location": {
"text": "In the groove between the nose and the upper lip, a third of the way down from the nose."
},
"for": [
"fainting",
"a stiff aching lower back"
],
"press": {
"text": "Gentle but steady with a fingertip, about a minute.",
"seconds": 60
},
"cautions": [
"Fainting or collapse needs emergency help; call for it first."
],
"source": "Zhenjiu Jiayi Jing, book 3",
"url": "https://acupoints.com/en/points/gv26",
"lastReviewed": "2026-08-24"
}