申脈 Shenmai
“The Extending Vessel” · BL62
Foot Taiyang · 62 of 67 · eight-confluent point (opens the yang qiao vessel)
Where. In the hollow directly below the tip of the outer ankle bone.
For. Headache; dizziness; poor sleep.
Press. Thumb pressure into the hollow, about a minute each foot.
申脈，陽蹺所生也，在足外踝下按 · Press with me
Six slow breaths
About a minute. Press as you breathe out, ease as you breathe in.
鄰 · Neighbouring leaves
Where Shenmai Sits on the Outer Ankle
Run a finger down the outside of your ankle and the geography announces itself: a rounded bony prominence — the outer ankle bone — flaring at its lowest point into a blunt tip. That prominence is the lower end of the fibula, the slender bone of the outer lower leg, and anatomists call its flare the lateral malleolus. The dataset places Shenmai on the lateral side of the foot, in the depression directly below the lateral malleolus — which means simply that you look for the soft hollow immediately under that blunt tip, out along the foot’s outer border rather than on top of the foot or up the shin. With the foot hanging relaxed, the hollow usually presents itself plainly; clench the foot or point the toes hard, and nearby tendons rise and crowd the view, which is why every search here begins by letting the foot go quiet.
Neighbors give the spot its bearings. Directly behind the malleolus runs the Achilles tendon, the strong cord climbing toward the heel, and the neighboring point Kunlun (BL60) occupies the groove between the bone’s tip and that cord — behind the malleolus, not below it. Behind and slightly below Shenmai itself, the rounded mass of the heel bone rises, and from this station the channel’s line runs onward along the edge of the foot toward the little toe, where the bladder pathway finishes its long descent. Beneath the fingertips, the floor of the hollow is bone — the outer surface of the ankle-and-heel complex — with slender tendons slipping past just behind the malleolar tip. None of this argues against touching the point; it argues for lightness. Location here is patient fingertips reading shallow contours between firm landmarks, never force.
The wider map explains why a small hollow by the ankle carries such a large portfolio. Classical teaching draws the bladder channel beginning beside the inner corner of the eye, arcing over the head, descending the whole length of the back, then traveling down the back and outer side of the leg to finish beside the outer edge of the little toe — the longest pathway in the body. Shenmai stands near the far end of that road. In the tradition’s way of reading the body, points anywhere along a channel could be reached for troubles along its entire route, so a station at the ankle belonged to discussions of heads and backs as surely as to ankles themselves. The point’s second title — its seat among the eight confluent points — extends that reach further still, as the coming sections describe.
A Self-Palpation Walkthrough
Sit upright on a firm chair with the searching foot resting lightly on its heel or crossed comfortably over the opposite knee, everything loose. With your opposite hand, walk your fingers down the outer side of the ankle until you find the lowest blunt tip of the outer ankle bone; press gently and let your pad memorise it, because this tip is the whole survey marker. Now slide straight downward from the tip, staying against the skin of the foot’s outer border. Within about a thumb-width you should feel the surface fall away into a small, yielding depression between the bone above and the fuller contours of the foot below. That hollow — directly below the tip, on the lateral side of the foot — is the address the dataset describes. Repeat the search on the other foot, unhurried, so both sides learn the terrain.
A few quiet confirmations help before pressing begins. Touch feather-light and compare feet: most people notice a faint, dull awareness at the true spot and little sensation a finger-width away. Keeping your fingertip in place, rock the ankle gently in small circles — the hollow should remain the hollow, a constant dip that neither vanishes nor migrates as the foot moves. Check the relationships once more: bone directly above, an open dip directly beneath the tip, and the taut cord of the Achilles tendon behind yet distinct from your position. If what you feel instead is a groove running upward behind the bone toward the tendon, you have drifted onto Kunlun’s ground; if the surface reads as uniformly bony with no dip at all, you may be sitting too high or too far forward — return to the tip and descend again, slowly.
Two classic misses account for most failed searches. The first is wandering behind the malleolus into the tendon groove — fertile point-finding country in its own right, but not this address; Shenmai keeps strictly to the space below the tip, never the corridor behind it. The second is overshooting downward onto the heel bulge or forward toward the fleshy edge of the instep, losing the malleolar tip as the reference point. Swelling blurs everyone’s landmarks: after a long day of standing, or in tight shoes, the hollow reads shallower, so search whenever possible with the foot rested and unconfined. When in doubt, lift the finger away entirely, find the bone’s lowest point once more, and make the short vertical journey down into the hollow a single time, slowly. Precision, not pressure, finds this point.
Reading the Name: The Extending Vessel
The two characters carry a kinetic idea. Mai 脈 is the familiar word for vessel, channel, or pulse — the pathways along which classical physiology imagined qi and blood moving. Shen 申 belongs to the same sound-and-sense family as shen 伸, to stretch or extend; dictionaries give the character senses of stating forth, spreading out, extending. Read together, Shenmai has traditionally been rendered the Extending Vessel, and commentators through the centuries tied the image to movement: a name about the body stretching upward and outward, the limb extending in a confident stride — not still water, not storied halls.
The vessel of the name is usually understood as the yang qiao, the Yang Heel Vessel, and here the dataset’s category line comes alive. Classical teaching counts eight extraordinary vessels alongside the twelve regular channels, and names eight confluent points where these deeper vessels are said to meet the ordinary network; the record lists Shenmai as the confluent point that opens the yang qiao — a name whose qiao carries classical senses of heel and nimble, striding movement. Classical texts describe that vessel setting out from this very region of the outer ankle and heel, climbing the outside of the leg, passing hip and shoulder territory, and arriving toward the face and eyes. Tradition paired it with a yin heel vessel rising from the inner ankle, and read the two together as stewards of the body’s uprightness and of the alternation of activity and rest. Classical practice also often discussed this point alongside Houxi (SI3), the two forming one of the celebrated confluent pairs.
Pinyin renders the name Shēnmài: a flat, high, level first tone on shen, and a crisp falling fourth tone on mai. The hanzi pair 申脈 is short enough to memorise at a glance. Among points named for gates, valleys, courtyards, and storehouses, this one wears motion openly — extend, stride, stretch forth. The name works as a small set of instructions: it tells you the tradition thought about this spot in terms of upright carriage and supple stepping, with the ankle’s mechanics joined to the head’s alertness, and it hints how gently such a place should be approached.
Traditional Indications, Explained
The recorded indications read: headache, dizziness, manic-depressive and epileptic disorders, insomnia, aching lower back and legs, arthritis, and sprained ankle. Headache and dizziness follow the long road rather than local anatomy: because classical texts drew the bladder channel from the inner corner of the eye across the crown and down the back to the little toe, the whole head-and-back territory belonged to this channel, and practitioners reached along it — including from its stations at the ankle — when head complaints presented. Aching lower back and legs sit squarely inside the same itinerary, for the pathway descends precisely through the regions those complaints inhabit; arthritis, in the vocabulary of the old records, gathered the stiff, long-standing joint complaints under the same channel logic.
Sprained ankle is the indication nearest home — the point lives at the ankle itself, and classical external practice naturally attended to the neighborhood it occupied. Insomnia reaches back to the heel-vessel doctrine: classical physicians linked the paired yin and yang heel vessels to the rhythm of sleeping and waking, describing the yang vessel as the carrier of daytime alertness and its yin partner as the steward of night’s rest, and they read unsettled, wakeful nights as the yang side refusing to settle. The remaining entry — manic-depressive and epileptic disorders — is the medicine of another era honestly cataloguing grave conditions it engaged; anyone facing seizure activity, dramatic mood disturbance, or altered consciousness today belongs promptly with physicians, and nothing on this page pretends otherwise.
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 gathered around any single point remains thin. Hold the tradition lightly, and hold the safety rules firmly.
Self-Care Acupressure at Home
With the hollow found by the walkthrough above, settle in: seated, the foot resting easily, the ankle free of shoes and tight socks. Place the pad of your index or middle finger — never the tip — in the depression. Begin with simple contact for a few breaths, then add small, slow circles, letting the skin glide over the bone beneath rather than grinding down onto it. Pressure should register as pleasant dullness or mild warmth, never sharpness. A common home rhythm is one to three minutes per foot, once or twice daily, matched where possible to slow exhales so each circle rides the breath out. Swap hands or feet and repeat, keeping the sessions symmetrical.
Quality matters more than duration. Light, patient, regularly repeated contact fits the wellness register this page practises; hard jabbing causes harm and teaches the body nothing. Warm cold hands first, because chilled tissue guards. Choose a quiet corner over a screen, since the practice doubles as a pause: inhale through the nose, notice the steady presence of bone under your fingertip, press gently on the long exhale. People who keep a routine often anchor it to an existing habit — taking off the day’s shoes, an evening wind-down — 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 feet feel less tired at day’s end, perhaps the press becomes a signal that the evening has begun, perhaps nothing shifts except that you spend ninety seconds attending to your own body. Every one of those outcomes fits the honest scope of self-acupressure. What does not fit is escalation — pressing harder, longer, or deeper to force a result. When curiosity pulls that way, return to gentleness or simply stop for the day.
Cautions and Safe Practice
The licensed dataset records no specific caution entry for this point, and this page responds by fencing conservatively anyway, because the local terrain supplies ample reasons. The hollow lies on skin stretched close over bone; the ankle carries the whole body’s load all day; and tendons pass close behind. Home self-care therefore means purely surface contact — skin and superficial tissue, nothing driven inward — and a standing rule that any increase in sensation is a signal to lighten, not to push. The professional records this dataset compiles concern techniques far beyond anything attempted at home; their existence is a reminder that this site matters, not a suggestion that gentle surface contact resembles them.
The practical rules follow plainly. Use finger pads only — no elbows, knuckles, or tools. Skip the point entirely over broken, irritated, or diseased skin. Give a freshly sprained, swollen, or bruised ankle a wide berth until healing is clearly underway — rest, elevation, and professional assessment serve a new injury far better than any pressing — and wait for a clinician’s clearance after any ankle fracture, dislocation, or surgery before adding pressure work. Persistent tenderness in this hollow after a twisting injury deserves prompt professional assessment, because ankle injuries are exactly what clinicians examine carefully, and early evaluation is always the prudent course. Sharp, electric, or radiating sensation means stop at once and do not try again that day. Pregnant readers 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 longer pressing session — for headache that is sudden and severe, or accompanied by fever, stiff neck, vision change, or weakness; for dizziness that recurs, worsens, or arrives with fainting; for any seizure or loss of consciousness; for insomnia grinding on week after week or shadowing the daylight hours; and for ankle pain with marked swelling, inability to bear weight, or visible deformity. Persistent symptoms belong with a licensed practitioner, physician or East Asian medicine provider as suits the complaint. The extending-vessel imagery is graceful, but the safest gift Shenmai offers most people is a kinder acquaintance with their own feet.
Shenmai, the Extending Vessel, rests in a small hollow directly beneath the outer ankle bone — a modest address for a point classical practice linked to headache, dizziness, restless nights, weary backs, and sprained ankles. The record lists it among the eight confluent points, opening the yang qiao vessel. This guide helps you find it by touch and press it gently and safely.
Self-care limits
Frequently asked
- How do I find Shenmai without any measuring system at all?
- Use the outer ankle bone as the whole map. Follow the ridge of bone on the outside of your ankle downward until it ends in a blunt tip, then slide straight below the tip until the surface dips into a small hollow on the foot’s outer side. That dip — directly beneath the bone’s tip — is the location the dataset describes. No measurements are needed; two landmarks, a bony tip and a yielding hollow, carry the whole address.
- Is pressing Shenmai myself actually safe?
- For healthy adults, gentle fingertip pressure held on the surface is generally reasonable self-care, because it engages skin and superficial tissue over a bony shelf, far short of anything fragile. What keeps it reasonable are the repeated house rules: finger pads only, light pressure, no tools, nothing over broken skin, nothing on a freshly injured ankle, and immediate stopping at any sharp or radiating sensation. Discomfort is a cue for lightness, not persistence.
- What did classical practice use Shenmai for?
- The traditional record lists headache, dizziness, manic-depressive and epileptic disorders, insomnia, aching lower back and legs, arthritis, and sprained ankle. Classical texts describe it as the confluent point opening the Yang Heel Vessel, which wove head, spine, and ankle into one conversation and tied the point to waking-and-sleeping rhythms besides. Those are traditional frameworks for understanding the body, documented for context — not evidence-backed treatment claims — and several listed conditions clearly belong with modern professionals today.
- Why would a point at the ankle speak to the head and to sleep?
- Two classical ideas meet here. The bladder channel, as the texts draw it, runs from the inner corner of the eye over the head and down the whole back to the little toe, so a station near its far end was read as part of one continuous route. Separately, the Yang Heel Vessel that this point opens was described climbing from the outer ankle toward the face, its paired yin vessel governing the turn from activity into rest. Channel-length reach plus vessel doctrine gave the ankle point its wide traditional portfolio.
- Can acupressure at Shenmai replace care for seizures, stubborn insomnia, or an ankle injury?
- No. Seizures and altered consciousness call for emergency medical attention; insomnia persisting for weeks deserves professional assessment; and a newly twisted, swollen ankle needs rest and evaluation, not pressing — self-care returns only once healing is well underway and any clinician involved agrees. Think of the two as different floors of the same building: daily self-care lives downstairs, and clinical medicine keeps the consulting room upstairs that you visit when symptoms persist or escalate. 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, eight-confluent theory, and channel context.
- 03aijiu-mpvue (MIT License) licensed dataset, entry for BL62 Shenmai — location, point class, actions, and the empty 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/bl62/leaf.json
- GET /zh-hant/points/bl62/leaf.json
- GET /zh-cn/points/bl62/leaf.json
- /llms.txt — the index of every leaf
- JSON-LD in the page: MedicalWebPage, MedicalEntity and FAQPage
{
"id": "BL62",
"name": {
"en": "Shenmai",
"gloss": "The Extending Vessel",
"zh-Hant": "申脈",
"zh-Hans": "申脉"
},
"channel": {
"id": "BL",
"order": 62,
"of": 67
},
"location": {
"text": "In the hollow directly below the tip of the outer ankle bone."
},
"for": [
"headache",
"dizziness",
"poor sleep"
],
"press": {
"text": "Thumb pressure into the hollow, about a minute each foot.",
"seconds": 60,
"sides": "both"
},
"cautions": [],
"source": "Zhenjiu Jiayi Jing, book 3",
"url": "https://acupoints.com/en/points/bl62",
"lastReviewed": "2026-08-25"
}