筋縮 Jinsuo
“Sinew Contraction” · GV8
Governing Vessel · 8 of 28
Where. On the spine, below the ninth thoracic bump: two bumps below the level of the shoulder-blade tips.
For. A stiff spine, stomach ache, low-back pain.
Press. Ask a helper to press firmly with a thumb, about a minute.
筋縮，在第九椎節下間按 · Press with me
Six slow breaths
About a minute. Press as you breathe out, ease as you breathe in.
鄰 · Neighbouring leaves
Where Jinsuo Sits on the Mid-Back
The licensed dataset places Jinsuo on the back, on the posterior midline, in the depression below the spinous process of the ninth thoracic vertebra. The thoracic spine is the twelve-bone stretch to which the ribs anchor, and its ninth member sits in the lower half of the mid-back, comfortably below the inner sweep of the shoulder blades. Points along the dorsal midline are traditionally found by counting spinous processes rather than by measuring sideways distances, so the working skill here is landmark recognition plus patient counting. One landmark does most of the job: the line joining the lowest tips of the two shoulder blades crosses the spine close to the seventh thoracic vertebra — the registry records exactly that level for Jinsuo’s upper neighbour GV9, Zhiyang. From that crossing, two narrow valleys farther down the midline bring you to the depression below the ninth.
What the fingertip meets here is architecture worth knowing. Beneath the skin runs a fence of spinous processes — the small, knuckle-like bone tips you can walk along the spine’s centre. Strong ligaments bridge the gaps between them, and flanking either side stand the twin muscle columns that hold the torso upright. Deeper still, bony arches join into a protective ring around the spinal cord, far beyond anything fingertip pressure can approach. The thoracic spinous processes slant sharply downward and overlap like roof shingles, which is why the hollows between them feel narrow and shallow, and why the ridge reads almost continuous under a moving finger. Light, patient touch reads this terrain far better than force ever could.
Neighbours make useful witnesses. One space below sits GV7, Zhongshu, at the tenth thoracic vertebra; two spaces above, GV9, Zhiyang, waits level with the shoulder-blade tips; three spaces above, GV10, Lingtai, occupies the sixth. Walking the midline up and down and counting the same valleys twice is the simplest insurance against miscounting, and losing track simply means returning to the shoulder-blade line and starting again. Because bodies differ — some people carry long, strongly slanted processes whose valleys feel barely there — counting gaps rather than estimating distances is what keeps the search honest.
A Self-Palpation Walkthrough
Reaching your own mid-back is easier than it sounds. Sit upright on a firm chair with both feet down, then let the spine round gently forward — the rounding sharpens the ridge and opens the gaps. Trace the border of one shoulder blade with the opposite hand until you find its lowest tip, then repeat on the other side, and picture the line joining the two tips where they cross the spine. Alternatively, ask a partner to help: two calm hands beat one strained arm. Whichever route you take, keep the searching touch feather-light; these landmarks announce themselves to patience, not pressure.
From the imagined crossing at the seventh vertebra, walk your fingertips straight down the centre line. The first narrow valley you cross belongs to the eighth vertebra; keep contact over the next bony tip and settle into the second valley — the depression below the ninth spinous process is Jinsuo’s seat. A few confirmations help: many people notice a faint dull awareness or slight tenderness between the bony tips at the true spot; slow breathing changes how prominently the ridge stands, so pause and let the back move under your fingers; and always count the valleys twice, down and back up. If the count goes astray, return to the shoulder-blade line and begin again without guessing.
Three classic slips account for nearly every miss. Drifting off the midline is the commonest: true centre feels like a fence of regularly spaced knobs, while the muscle cords beside the spine feel softer and uneven. Starting the count from the prominent bone at the base of the neck is another — that count is long and easily lost, which is why the shoulder-blade line makes a friendlier anchor. And hunting too hard is the third: pressing firmly flattens sensation and tenses the very muscles you are trying to read. With a partner, agree the pressure before anyone touches down, and speak up the moment anything sharpens.
Reading the Name: Sinew Contraction
The characters tell the story plainly. Jin 筋 names the sinews — tendons, ligaments, the tough fibrous tissue tying muscle to bone; the character crowns the bamboo radical over elements suggesting flesh and strength, and older explanations likened sinews to the resilient fibres of bamboo. Suo 縮 carries the sense of contracting, shrinking, drawing in — written with the silk radical, evoking threads pulled tight. Together the name reads as sinew contraction: the moment the body’s fibrous tissue seizes short. Few point-names describe a motion this directly.
Why give a spine point such a name? Classical teaching grouped stiffness, spasm, and sudden pulling conditions under patterns in which the sinews lose their suppleness and draw tight; the same teaching held that the liver governs the sinews, and read emotional strain and inner heat as forces that tighten them. The governing vessel adds its own logic: it climbs the midline of the back and head and unites the yang meridians — the channels classical thought charged with warmth and movement — so a station on that midline was read as a place to address the body’s active, moving aspect. Name and position together explain why discussions of backs that would not release kept arriving here.
Pinyin renders the name Jīnsuō, with a high, level first tone on each syllable — jin and suo are both sustained flat pitches, giving the name a steady, even cadence. The hanzi pair 筋縮 is short enough to memorise at a glance. Like the gates, valleys, courtyards, and storehouses elsewhere on the map, the naming tradition treats language as diagnostic shorthand: the label records what the tradition expected to meet at this station. Read that way, the name is itself a small set of instructions.
Traditional Indications, Explained
The recorded indications read: spinal stiffness, stomachache, epilepsy, convulsions, and lower back pain. In the traditional idiom, spinal stiffness describes a back that refuses to bend and release — a tight-drawn quality through the mid-back rather than any single injured spot. Convulsions translates almost literally into the point-name: sinews seizing, limbs pulling. Old texts grouped such sudden, gripping episodes under patterns involving wind, one of the traditional movers of sudden change — a framework for understanding, recorded here as history rather than guidance.
The stomachache pairing looks stranger until the older cartography is consulted. Classical geography gathered points for each organ beside the spine and ran the governing vessel along the midline between them, so practitioners who read the back read spine and organs together, and belly complaints were routinely discussed at spinal stations. That pairing reflects the logic of an older map, not modern physiology — today’s readers do best to hold it as historical context, coherent and interesting on its own terms.
It bears repeating plainly: these are the traditional uses recorded in a licensed dataset, offered for cultural and historical understanding. They are not claims that pressing this point treats any condition. Where epilepsy and convulsions are concerned, the boundary matters most: seizure care belongs wholly to modern medicine, anyone living with seizures needs a qualified clinician, and self-acupressure never substitutes for assessment or treatment. 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.
Self-Care Acupressure at Home
With the point found, settle in: seated or lying, back unguarded, hands warm. Reach behind with the pads of two or three fingertips and rest them on the hollow, or invite a partner to apply the same gentle contact. Begin with touch alone for a few breaths, then add small, slow circles, letting the skin glide over the firm ground beneath. Pressure should register as pleasant dullness or spreading warmth, never sharpness. A common home rhythm is one to three minutes, once or twice daily, matched where possible to long exhales. Afterwards, let the back move kindly — an unhurried turn or an easy side-bend, kept well within comfort.
Quality outranks duration. Light, patient, regularly repeated contact is the whole practice; hard jabbing teaches the body nothing and courts harm. Warm cold hands before starting, because chilled muscle guards. Choose a quiet corner over a screen and let the session double as a breathing pause: inhale through the nose with the fingers still, press gently on the long exhale out. People who keep such routines usually anchor them to existing habits — the morning stretch, the evening wind-down — because consistency, not intensity, is what self-care traditions actually request.
Treat the minutes as a small ceremony of attention rather than a treatment session. Across weeks you may notice the area feels less guarded, that your posture awareness has quietly risen, or simply that you spent ninety seconds attending to your own back. 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 stop for the day.
Cautions and Safe Practice
This entry’s licensed dataset records no specific caution, and this module echoes that faithfully with an empty list. Absence of a recorded warning is not an invitation to force, however: the spine deserves standing respect. Keep every ounce of pressure superficial, on skin and the outermost fibres over the bony midline; never drive inward between two vertebrae, and never bounce or jab at the ridge.
Practical rules follow. Use finger pads — never elbows, knuckles, or tools. Skip the area over broken skin, rashes, or fresh bruising; pause entirely during feverish illness; and after any back injury or surgery wait until a clinician clears ordinary activity. Sharp, electric, or radiating sensation means stop at once and do not try again that day. Pregnant readers, and anyone living with a spinal condition, should consult a qualified practitioner before adding any new point practice. Seek prompt medical care — not a pressure routine — for numbness or tingling spreading into the legs, limb weakness, changes in bladder or bowel control, back pain after a fall, or back pain accompanied by fever.
And the wider rule stands over everything: this page is educational, and self-acupressure is comfort practice, not diagnosis or therapy. Persistent symptoms belong with a licensed practitioner, and anything resembling a seizure belongs with emergency services, never with pressure. The governing vessel’s imagery is grand, but the safest gift Jinsuo offers most people is quieter — a better acquaintance with their own back, met kindly and left comfortable.
Jinsuo — Sinew Contraction — holds a mid-back station on the Du vessel’s climb along the body’s exact centreline. The classical record reached for it when the spine seized and stiffened and, less obviously, when the stomach ached. This guide walks through locating the point by touch, reading its name, and practising gentle, surface-only self-acupressure.
Self-care limits
Frequently asked
- How do I reach a point in the middle of my own back?
- Round gently forward in a firm chair and walk the fingertips of one hand up the centre line from waist height, or start from the line joining the shoulder blades’ lowest tips and count down two valleys. A partner works just as well — agree the pressure beforehand. Keep the searching touch feather-light; counting beats guessing.
- Why does a back point appear in old records for stomachache?
- Classical geography placed gathering-points for the organs beside the spine and ran the governing vessel along the midline between them, so back and belly were read together. The pairing reflects the logic of the traditional map, not a modern mechanism claim — historical context, documented honestly.
- Did tradition really list Jinsuo for epilepsy and convulsions?
- Yes — the licensed record lists both, understood through old frameworks of wind patterns and tightening sinews. Today the dividing line is absolute: suspected seizures call for medical assessment, an active seizure calls for emergency services and protecting the person, never pressure, and anyone with a seizure history needs ongoing clinical care. The record is heritage, not a home protocol.
- Is it safe to press near the spine at home?
- For healthy adults, gentle fingertip contact held on the surface is generally reasonable self-care: it engages skin, ligament, and superficial muscle far short of the deeply protected canal. Respect the stop signals — sharp, electric, or radiating sensation ends the session immediately — and seek professional advice first if pregnant or living with a spinal condition.
- What should pressing Jinsuo actually feel like?
- Most people describe a slowly spreading dull ache or warmth, sometimes a faint heaviness between the bony tips. Nothing dramatic is required, and feeling little at all is normal. Sharp or radiating sensations are stop signals, not milestones — the practice rewards patience, not endurance.
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, governing-vessel context, and classical indication background.
- 03aijiu-mpvue (MIT License) licensed dataset, entry for GV8 Jinsuo — 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/gv8/leaf.json
- GET /zh-hant/points/gv8/leaf.json
- GET /zh-cn/points/gv8/leaf.json
- /llms.txt — the index of every leaf
- JSON-LD in the page: MedicalWebPage, MedicalEntity and FAQPage
{
"id": "GV8",
"name": {
"en": "Jinsuo",
"gloss": "Sinew Contraction",
"zh-Hant": "筋縮",
"zh-Hans": "筋缩"
},
"channel": {
"id": "GV",
"order": 8,
"of": 28
},
"location": {
"text": "On the spine, below the ninth thoracic bump: two bumps below the level of the shoulder-blade tips."
},
"for": [
"A stiff spine",
"stomach ache",
"low-back pain"
],
"press": {
"text": "Ask a helper to press firmly with a thumb, about a minute.",
"seconds": 60
},
"cautions": [],
"source": "Zhenjiu Jiayi Jing, book 3",
"url": "https://acupoints.com/en/points/gv8",
"lastReviewed": "2026-08-24"
}