Not on the belly in pregnancy.
梁門 Liangmen
“Beam Gate” · ST21
Foot Yangming · 21 of 45
Where. On the upper belly, three finger-widths out from the midline, halfway between the navel and the base of the breastbone.
For. Stomach ache, vomiting, loose stools.
Press. Gentle flat-finger pressure, about a minute each side, not after a big meal.
Caution. Not on the belly in pregnancy.
梁門，在承滿下一寸按 · Press with me
Six slow breaths
About a minute. Press as you breathe out, ease as you breathe in.
鄰 · Neighbouring leaves
Where Liangmen Sits on the Upper Abdomen
On the upper abdomen, Liangmen occupies the recorded position: four cun above the centre of the umbilicus, two cun lateral to the anterior midline. A cun is the traditional measuring unit of Chinese point-location — proportional lengths taken from the person being examined rather than from a ruler. For working out four cun here, one old shortcut helps: the traditional scheme divides the span from the hollow of the navel up to the pointed lower tip of the breastbone into eight equal parts, so four cun above the navel is simply the halfway mark of that climb.
What the fingertips meet there is the soft architecture of the belly wall. The spot sits within the vertical strap of the abdominal muscle, above the navel and well below the costal margin, where skin and padding give way under patient pressure before any firmer resistance registers. Nothing delicate announces itself at the surface — unlike points near the collarbone or throat, this is forgiving country — yet the very ordinariness can mislead people into pressing hard, which serves nothing. The belly answers gentleness far better than determination, and self-care here should feel more like kneading dough than testing a wall.
The neighbours confirm the address. One thumb-width directly above, at five cun above the umbilicus, lies Chengman (ST20); one thumb-width directly below, at three cun, lies Guanmen (ST22) — three doors in an even column, all two cun from the central line. The stomach channel, which classical texts describe descending the whole front of the body from the face toward the second toe, runs through this stretch of the upper belly hugging close to the midline, closer than it does across the chest. Finding one point therefore finds the row, and the middle door of the three is Liangmen.
A Self-Palpation Walkthrough
Lie on your back with knees slightly bent, so the belly softens, or sit propped comfortably. Find the centre of your navel, then walk your fingertips straight upward until they reach the pointed lower tip of the breastbone; that climb is the eight-part span described earlier. Come back down to its halfway mark — four cun above the navel. From there slide sideways two thumb-widths, roughly the width of your own thumb measured twice, keeping level with the halfway point. Press gently: a shallow, even depression in the muscle wall, neither bone nor ribs, tells you the search has landed.
A few quiet confirmations help. Compare sides with feather-light touch: many people notice a faint dull awareness at the true point and little sensation half a thumb away. Let a breath move under your palm — the belly rises on the inhale and settles on the exhale, and the spot moves with it. Check your horizontal distance once more against the central line running from breastbone to navel. If your finger meets the bony rim of the ribcage, you have drifted high; drop a thumb-width and try again. If you land on the navel itself, you have barely begun the climb.
Two slips account for most misses. The first is measuring diagonally instead of vertically — the path from navel to breastbone tip must run straight up the middle of the belly, not angled toward the side. The second is letting the sideways step creep outward; two thumb-widths is a modest stride, and hands tend to overshoot when guessing. Re-anchor often: back to the navel, up to the halfway mark, sideways once. People who locate the point this way a few times usually develop a reliable inner map of it, after which the measuring becomes a formality rather than a survey.
Reading the Name: Beam Gate
The name is built from two everyday characters. Liang 梁 means a beam — the ridgepole or crossbeam that carries a roof — and by extension anything shaped like a beam, from a bridge to the ridge of the nose. Men 門 means a gate or door. Together, Liangmen reads as the beam gate: the entranceway beneath the great beam of the house. Some commentators add a wordplay: liang also evokes a homophone character meaning fine grain, so the gate becomes the doorway through which food — the household’s treasure — passes into storage. Both readings circle the same image: a threshold in the house of nourishment.
Classical teaching describes the spleen and stomach together as the granary officials — a paired storehouse charged with receiving, ripening, and passing along everything eaten. Gates and doors along the stomach channel belong naturally to that imagery, and Liangmen stands at the middle of the upper-belly row, where the granary’s work is busiest. In the traditional frame, food entering the mouth eventually arrives at this stretch of the abdomen to be received and transformed into the qi and blood the body lives on; a gate set there marks both the passage of goods and the place where their flow can stick. The metaphor does explanatory work rather than merely decorating.
Pinyin writes the name Liángmén, and both syllables carry the same music: each is spoken with the rising second tone, the voice climbing gently through the character. The hanzi pair 梁門 is compact enough to memorise at a glance. Like many points named for architecture — gates, courtyards, valleys, storehouses — the metaphor behaves like a set of instructions, telling you where the point sits and what the tradition believed happened there. Remembering “the beam gate, halfway up from the navel” locates the point and summarises its classical job description in a single stroke.
Traditional Indications, Explained
The recorded indications read: stomachache, vomiting, poor appetite, and slippery diarrhoea with undigested food. Framed as tradition rather than promise, classical practice traditionally reached for Liangmen when pain gathered around the pit of the stomach — the dull, churning ache old records call stomachache — and when nausea rose until it emptied upward as vomiting. These two sit at the head of nearly every historical entry for the point, and they fit its gate imagery directly: the classical view held that a stuck or unruly flow in the stomach’s domain shows up exactly there, at the doorway.
The last two indications travel together in classical thinking. Poor appetite was read as the granary fire burning low — the stomach unwilling to receive, the person uninterested in food. Slippery diarrhoea with undigested food — stools that pass loosely while carrying visibly untransformed remnants — was understood as the paired work of the stomach and spleen failing: what entered was never properly ripened, so it passed through unchanged. Classical practice reasoned along those lines and chose points on this stretch of the channel, Liangmen among them, to encourage the granary’s sluggish machinery. That is traditional reasoning laid out for understanding, not a claim about outcomes.
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 nothing in this guide replaces assessment by a qualified clinician — particularly for digestive complaints, where persistent symptoms deserve genuine medical attention. 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, hold the safety rules firmly, and let a doctor look at anything that will not settle.
Self-Care Acupressure at Home
With the point located, settle in: seated or lying, abdomen relaxed, hands warm. Curl your index and middle fingers together and rest the pads — never the tips — on the spot. Begin with simple contact for a few breaths, then add small, slow circles, letting the skin glide over the tissue beneath. 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 give the other side equal time.
Timing and mood matter as much as technique. Many people find it most comfortable to practice away from mealtimes — neither immediately after a large meal nor on a completely empty stomach — simply because a busy belly resists attention. Choose a quiet corner rather than a screen; the few minutes double as a pause in the day. Warm cold hands first, because chilled muscle guards itself. And anchor the practice to an existing habit — morning washing, an evening wind-down — since consistency, not intensity, is what self-care traditions actually ask for. A minute daily beats ten minutes once a fortnight.
Treat the exercise as a small ceremony of attention rather than a treatment session. Across weeks, notice what changes: perhaps the area feels less guarded, perhaps eating and digesting simply feel less fraught while you press, perhaps nothing shifts except that you spend ninety seconds attending to your own middle. Every outcome fits the honest scope of self-acupressure. What does not fit is escalation — pressing harder or longer to force a result, especially over a complaint that keeps returning. When curiosity pulls that way, return to gentleness, or book the appointment you have been postponing.
Cautions and Safe Practice
This is one of the calmer addresses on the channel: the licensed dataset records no cautions for Liangmen, and nothing in its geography approaches the danger zones found higher on the trunk. That said, an empty caution field is a record, not an invitation. The belly wall rewards patience and punishes force with guarding — the muscles clench, the pressure stops informing, and the next morning may grumble. Self-care here stays strictly superficial: skin and outer muscle, finger pads only, no tools, no driving downward, and always short of any sensation that sharpens.
Skip the point entirely when the abdomen is acutely unwell — during nausea with active vomiting, cramping, or any sudden severe belly pain, which calls for medical assessment rather than massage. Set the practice aside during a feverish illness and over broken or irritated skin. Stop at once on sharp, electric, or radiating sensation, and do not retry that day. Pregnant readers should consult a qualified practitioner before adding any new point practice, as should anyone living with a diagnosed digestive condition or recovering from abdominal surgery. None of these rules is elaborate; all of them are absolute.
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 stomach pain that persists or worsens, vomiting that does not settle, blood in vomit or stool, unexplained weight change alongside digestive trouble, or any symptom that frightens you. Persistent complaints belong with a licensed practitioner, medical or East Asian medical as suits the situation. The beam-gate imagery is charming, but the soundest gift Liangmen offers most people is a calmer daily acquaintance with their own digestion, treated kindly.
Liangmen, the Beam Gate, sits halfway between the navel and the lower tip of the breastbone, two thumb-widths to the side of the midline. Classical practice reached for it when stomachache, unsettled stomach, or a flagging appetite troubled someone. This guide walks through finding it by touch and pressing it safely.
Self-care limits
Frequently asked
- How do I find Liangmen without knowing anything about cun?
- Use the navel and breastbone as the whole map. Measure the climb from the centre of your navel straight up to the pointed lower tip of the breastbone, take the halfway mark, then step sideways two thumb-widths. The gentle depression you find there, level with the halfway point and clear of the ribs, is the location the dataset records. Cun measurements encode the identical landmark sequence in proportional language.
- Is pressing Liangmen myself actually safe?
- For healthy adults, gentle fingertip pressure on the surface is generally reasonable self-care, and the licensed record notes no specific cautions for this point — unlike several sites higher on the trunk. The belly wall is forgiving country, provided contact stays superficial and painless. Respect the stop signals all the same: sharp pain, worsening discomfort, or an abdomen that feels actively unwell mean finish immediately and, if symptoms persist, seek advice.
- What did classical practice use Liangmen for?
- The traditional record lists stomachache, vomiting, poor appetite, and slippery diarrhoea with undigested food. Classical texts grouped these as disorders of the stomach’s receiving and transforming work, and Liangmen’s gate imagery made it a natural candidate in such discussions. Those are traditional frameworks for understanding the body, documented for context — not evidence-backed treatment claims.
- Why call a point on the belly a gate?
- Because classical naming loved the architecture of a dwelling. Doors and gates mark thresholds where things pass — and on the stomach channel, whose work is the receiving and processing of food, gate imagery gathers thickly. Liangmen, the beam gate, sits midway up the granary wall between Chengman above and Guanmen below: three openings in one column, named for the beam overhead, the room filled full, and the closing door.
- Can acupressure at Liangmen replace seeing a doctor about my stomach?
- No. Self-acupressure is a comfort practice, not a diagnostic tool. Digestive complaints deserve particular care precisely because so many different conditions wear the same mild face: a stomachache that keeps returning, vomiting that repeats, blood in vomit or stool, or appetite loss stretching past a couple of weeks all need professional assessment promptly. Daily self-care and clinical medicine occupy different floors of the same building, and neither substitutes for the other.
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 context.
- 03aijiu-mpvue (MIT License) licensed dataset, entry for ST21 Liangmen — location, 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/st21/leaf.json
- GET /zh-hant/points/st21/leaf.json
- GET /zh-cn/points/st21/leaf.json
- /llms.txt — the index of every leaf
- JSON-LD in the page: MedicalWebPage, MedicalEntity and FAQPage
{
"id": "ST21",
"name": {
"en": "Liangmen",
"gloss": "Beam Gate",
"zh-Hant": "梁門",
"zh-Hans": "梁门"
},
"channel": {
"id": "ST",
"order": 21,
"of": 45
},
"location": {
"text": "On the upper belly, three finger-widths out from the midline, halfway between the navel and the base of the breastbone."
},
"for": [
"stomach ache",
"vomiting",
"loose stools"
],
"press": {
"text": "Gentle flat-finger pressure, about a minute each side, not after a big meal.",
"seconds": 60,
"sides": "both"
},
"cautions": [
"Not on the belly in pregnancy."
],
"source": "Zhenjiu Jiayi Jing, book 3",
"url": "https://acupoints.com/en/points/st21",
"lastReviewed": "2026-08-24"
}