In pregnancy, ask a practitioner first.
完骨 Wangu
“Completed Bone” · GB12
Foot Shaoyang · 12 of 44 · crossing-point
Where. In the soft hollow just below and behind the bony knob behind the earlobe.
For. Headache; a stiff, sore neck; toothache.
Press. Gentle fingertip pressure, about a minute each side.
Caution. In pregnancy, ask a practitioner first.
完骨，在耳後，入髮際四分按 · Press with me
Six slow breaths
About a minute. Press as you breathe out, ease as you breathe in.
鄰 · Neighbouring leaves
Where Wangu Sits Behind the Ear
Run a fingertip straight back from your ear opening and you will meet a firm, rounded knob of bone — the mastoid process, the lump everyone can feel behind their own earlobe. The dataset locates Wangu on the head, in the depression below and behind the mastoid process behind the ear. Unpacked: find the knob first, then look for the soft hollow that sits off its lower rear margin, where the bony skyline drops away toward the neck. No proportional measuring is required here, because the landmark travels with every skeleton: tall or slight, young or old, the bump behind the ear is reliably there, and so is the little sheltered hollow at its foot.
The covering here is thin compared with most of the body. Skin and a slip of fascia lie over the rear border of the sternocleidomastoid — the long strap of neck muscle that sweeps from just behind the ear down to the collarbone — and past that border the tissue settles into the hollow against the skull base. Because so little stands between fingertip and bone, sensation at this point arrives quickly and clearly: a modest touch already feels definite. That sensitivity is part of the point’s traditional character — classical writers grouped it among the points of the ear’s hinterland — and it argues for patience rather than pressure whenever you visit.
Orientation helps before the search begins. Directly in front of the site lies the ear itself and the opening of the ear canal; a thumb-width farther forward and down waits the hinge of the jaw, which glides when the mouth opens. Above and behind climbs the hairline. The hollow you want keeps company with none of these: it hugs the lower rear shoulder of the mastoid knob, on both sides of the head, mirror-image twins. Comparing the two sides as you explore is the fastest way to learn the local geography — whatever you feel on one side, the other should echo.
A Self-Palpation Walkthrough
Sit upright on a firm chair with both feet down and the shoulders heavy, letting the neck muscles soften. Rest the pads of your index and middle fingers just behind the earlobe of one side. Slide slowly upward and backward until the fingers climb onto the rounded bony bump — unmistakable once found, a knob that shifts nothing when pressed, because it is bone itself. Now walk the fingertips down and back off the bump’s lower rear margin until they settle into the soft, sheltered depression below and behind it. Rest there quietly for a few breaths before doing anything more. Repeat the whole search on the other side so both locations are learned together.
Two light checks confirm the seat. First, touch feather-light and compare: many people notice a faint dull fullness right in the hollow and almost nothing a finger-width away, though responses differ person to person and side to side. Second, let a slow breath move through — the area should stay quiet and unremarkable under still fingertips; there is nothing here that pulses or slides the way vessels and tendons do elsewhere. The relationship is the real test: the hollow must sit below and behind the bump, never on its crown and never out in the flat of the neck muscle. When the geometry reads correctly, you have the place.
Failed searches mostly stumble in three places. Drifting forward carries the fingers onto the ear itself or the gristle at its opening — soft territory, whereas the target is sheltered by bone. Dropping too far low lands in the belly of the neck muscle, which thickens and pushes back in an entirely different way. Wandering up or back loses the hollow in the hairline’s shadow. All three resolve the same way: return to the earlobe, climb the bump again, and step off its lower rear edge one time, slowly. The landmark sequence is short enough to repeat without fatigue, and repetition teaches it faster than force ever could.
Reading the Name: Completed Bone
The characters read plainly once glossed. Wan 完 means complete, whole, finished — the craftsman’s word for work brought to its intended end. Gu 骨 means bone. Together the pair suggests a completed bone: the place where the skull’s stonework rounds off whole behind the ear. Point names in this tradition borrow freely from landscape and building — gates, pools, valleys, courtyards — and this one belongs to the builder’s register: masonry finished, edges closed, the cranium’s curve arriving at its settled conclusion just above the earlobe. Read this way, the map of several hundred points becomes a guided tour of an imagined country.
The catalogue records GB12 among the crossing-points — the class of sites where, in the traditional account, more than one channel gathers or passes over the same ground. Crossing-points carry a particular weight in classical reasoning: a junction sees traffic from several roads, so discussions that begin at one channel often continue into another. The dataset entry stops at the category itself, and this guide does likewise; the point worth taking away is simpler — the tradition regarded this modest hollow behind the ear as a busy address rather than a quiet dead end, a place where the lines drawn on the body’s surface were understood to meet.
Pinyin renders the name Wángǔ: wan carries the rising second tone, gu the dipping third tone. The two characters are easy to hold in memory — complete, bone — and they suit the point’s sturdy, unadorned character better than any ornate image could. GB12 is the twelfth of the forty-four points the registry assigns to the gallbladder channel, seated at the backward lower bend of that channel’s zigzag journey down the side of the head. Name, number, and geography agree neatly here: a completed bone, a crossing of ways, a turning point on the road — the same hollow described three times over.
Traditional Indications, Explained
The dataset records eleven indications, and the first group clusters where the point lives — the head, face, and throat. They read: headache, swelling of the cheek, sore throat, toothache, deviation of the mouth and eye, and stiff painful neck. Each deserves its traditional sense. Headache in these records spans the familiar family of aching heads. Swelling of the cheek and sore throat describe heat-and-fullness feelings in the lower face and the passage of the throat, as classical medicine framed them. Toothache appears wherever face-and-jaw points gather. Deviation of the mouth and eye was the old records’ umbrella for facial drawing or drooping. Stiff painful neck — tight, resistant, aching — pairs naturally with a point set into the neck’s own doorway.
A second group belongs to the ear. Tinnitus and deafness stand together in the record: the former naming the private bells and hums a person hears without outside sound, the latter naming diminished hearing as the older vocabulary understood it. Points scattered around and behind the ear recur throughout the classical literature on ear complaints, and Wangu, tucked into the ear’s rear hinterland, joined that company. As always on these pages, the framing matters: the record tells us what classical practice reached for, and why the tradition placed the point where it placed it. It asserts no outcomes, and readers weighing ear symptoms today should begin with an examination, not a pressure routine.
The final three entries — cervical scrofula, epilepsy, and malaria — arrive from the history of medicine. Cervical scrofula was the traditional name for chains of lumps along the sides of the neck; epilepsy gathered the convulsive disorders under one classical heading; malaria was the recurrent fever illness that filled the older medical books. These belong to a different era’s caseload, recorded here for completeness and cultural understanding. Anyone facing seizures, suspected infection, neck lumps, or recurring fevers today needs prompt professional assessment, plainly and without exception. The traditional list is a window onto how the tradition thought; it is not a prescription, and nothing in it invites trying anything at home.
Self-Care Acupressure at Home
Settle in as you did for the walkthrough: seated, spine tall but unforced, jaw loose. Bring the pad of one finger — pads, never tips, and never a knuckle or tool — to rest in the hollow below and behind the mastoid bump. Begin with contact alone for a few slow breaths, then add small unhurried circles, letting the skin glide gently over what lies beneath. Aim for pleasant dullness or faint warmth; sharpness of any kind ends the session. A common home rhythm is one to three minutes per side, once or twice daily, matched where possible to long exhales. Finish one side, swap hands, and give the other side its equal turn.
Quality outranks duration here more than almost anywhere, because the ground is small and close to the ear. Warm cold hands first; chilled tissue guards itself. Choose a quiet corner rather than a screen, and let the minute of pressing double as a pause: eyes soft, breath slow, attention resting at the back of the head. People who keep the habit usually tether it to an existing one — morning washing, an afternoon tea, the last minutes before sleep — because regularity, not intensity, is what home traditions of self-care actually reward. Two gentle sessions a week kept forever beat one heroic session followed by silence.
Hold the practice as a small ceremony of attention rather than a treatment. Over weeks you may notice the area feeling less guarded, the neck turning a shade more freely, or simply that you spent a minute each day attending to a corner of yourself usually ignored. Every one of those fits the honest scope of self-acupressure. What does not fit is escalation: pressing harder, circling faster, hunting for a stronger sensation to justify the effort. When curiosity pulls that way, return to the light touch that worked on day one — or close the notebook for the day. The hollow behind the ear rewards patience and ignores force.
Cautions and Safe Practice
An honest note comes first: the licensed dataset records no specific cautions for this point. The absence of a written caution is not an invitation to press hard — the universal rules govern every point on the body — but it does mean this page has no dataset-bound warning to translate. Local geography still argues for gentleness: the ear, the jaw joint, and the upper neck all keep house within a thumb-width of the site, and the tissue cover is thin. Light, patient, purely surface contact is the entire art here, exactly as it should be wherever a fingertip works close to the skull.
Practical rules for home practice: use finger pads only, never tools or devices; skip the point over broken, irritated, or healing skin, and during a feverish illness; never press while holding the breath or through pain. Stop at once on sharp, electric, or radiating sensation, and leave the point alone for the rest of the day. Readers who are pregnant, and anyone living with neurological conditions, ear disorders, or recent head or neck injury, should consult a qualified practitioner before adding any new point practice. None of this is special severity — it is the ordinary courtesy the body asks whenever it is touched deliberately.
And the standing rule above all others: this page is educational, and acupressure is self-care, not diagnosis or therapy. Seek prompt medical care — not a longer pressing session — for a sudden severe headache, a headache following a blow to the head, headache with fever and a stiff neck, new weakness or changed speech, hearing that changes abruptly, or any symptom that frightens you. Persistent headaches, ongoing ear noise, or throat complaints that refuse to settle belong with a licensed practitioner, medical or East Asian medical as suits the complaint. Completed bones deserve completed honesty: know the limits of home care, and respect them.
Wangu, Completed Bone, rests in a small sheltered hollow below and behind the bony bump behind your ear — the twelfth point on the gallbladder channel’s zigzag path down the side of the head. Classical records reached for it in headaches, stiff necks, and complaints of the ear, face, and throat. This guide covers finding it by touch, reading its name, and pressing it gently at home.
Self-care limits
Frequently asked
- How do I find Wangu without knowing anything about cun?
- Follow the ear. Place a fingertip behind the earlobe, climb onto the rounded knob of bone you meet there, then step off its lower rear edge into the soft hollow below and behind. That hollow is the location the dataset describes, and the search needs no measurements at all — the bump is present on every skull, which is why classical location leans on landmarks rather than rulers wherever it can.
- Is pressing behind my ear actually safe?
- Gentle fingertip contact held on the surface is generally reasonable self-care for healthy adults, and the licensed record lists no specific caution for this point. The area is delicate, so lightness is the rule: pads only, small circles, nothing sharp ever. Sharp, electric, or radiating sensation, worsening discomfort, or any unease means stop immediately — and anyone pregnant or managing a relevant condition should ask a qualified practitioner first.
- What did classical practice use Wangu for?
- The traditional record gathers eleven indications: headache, swelling of the cheek, sore throat, toothache, deviation of the mouth and eye, stiff painful neck, tinnitus, deafness, cervical scrofula, epilepsy, and malaria. The pattern explains the placement — head, face, throat, and ear cluster around a point set behind the ear, and the last three entries preserve an older era’s disease world. These are traditional uses documented for context, not treatment claims.
- Why does a gallbladder-channel point sit behind the ear?
- Classical maps draw the gallbladder channel zigzagging down the side of the head before continuing down the body toward the fourth toe, and Wangu marks the backward lower bend of that head-long descent, tucked behind the ear where the pathway turns. The registry pairs the channel with the wood element and with themes of tension and decision-making, which is why gallbladder points appear so often in classical discussion of the head and neck.
- Can acupressure replace care for ringing ears or stubborn headaches?
- No. Self-acupressure is a comfort practice, not a diagnostic tool. New or changing ear noise, diminishing hearing, or headaches that persist, worsen, or carry warning signs deserve professional assessment promptly — the earlier the better, because some causes are simple and some are not. Keep the daily pressing if it comforts you, and keep the appointment too; the two live on different floors of the same building.
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, crossing-point context, and channel course.
- 03aijiu-mpvue (MIT License) licensed dataset, entry for GB12 Wangu — 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/gb12/leaf.json
- GET /zh-hant/points/gb12/leaf.json
- GET /zh-cn/points/gb12/leaf.json
- /llms.txt — the index of every leaf
- JSON-LD in the page: MedicalWebPage, MedicalEntity and FAQPage
{
"id": "GB12",
"name": {
"en": "Wangu",
"gloss": "Completed Bone",
"zh-Hant": "完骨",
"zh-Hans": "完骨"
},
"channel": {
"id": "GB",
"order": 12,
"of": 44
},
"location": {
"text": "In the soft hollow just below and behind the bony knob behind the earlobe."
},
"for": [
"headache",
"a stiff",
"sore neck",
"toothache"
],
"press": {
"text": "Gentle fingertip pressure, about a minute each side.",
"seconds": 60,
"sides": "both"
},
"cautions": [
"In pregnancy, ask a practitioner first."
],
"source": "Zhenjiu Jiayi Jing, book 3",
"url": "https://acupoints.com/en/points/gb12",
"lastReviewed": "2026-08-24"
}