GB-17 (Zheng Ying) Upright Construction

What does GB-17 Zheng Ying do?

GB-17 benefits the head and alleviates pain, and it pacifies the Stomach — the only point on this scalp run whose action names an organ, and the only one on the whole head whose action names the Stomach.

• Benefits the head and alleviates pain — shared with GB-18 and GB-19 in the same words
• Pacifies the Stomach — unique on this run, and unmatched by anything in the indication list

The mismatch is real, and it is the eighth this project has documented. Our recorded indications for GB-17 are migraine and vertigo — nothing digestive at all. The action field claims a Stomach effect the indication field does not support. Set alongside the earlier cases, the pattern is now firmly established:

• BL-11 influential point for the bones — no bone indication · BL-51 benefits the breasts — no breast indication
• BL-55 stops uterine bleeding — no gynaecological indication · KI-19 alleviates cough and wheezing — nothing respiratory
• KI-20 unbinds the chest — wholly digestive indications · KI-26 benefits the breasts — no breast indication
• SJ-15 unbinds the chest — wholly musculoskeletal indications · GB-17 pacifies the Stomach — no digestive indication

Eight instances is a property of the material, not eight oddities. In this data the action fields consistently claim more than the indication fields support — which is precisely why every page in this library reproduces both fields in full rather than summarising from one. A reader using only the action list would take GB-17 for a digestive point; a reader using only the indications would never suspect it.

On the name. “Zheng Ying” is rendered in our data as Upright Construction, and it is one of the more opaque names in the system — zheng meaning upright or correct, ying carrying senses of construction, camp, or the nutritive level of qi. Our record holds Upright Construction and other readings circulate; this page does not choose between them, because our data does not settle it.

Source: Sacred Lotus sources & references (channel, category, action, indication and translation records, with the action and indication fields compared directly; the seven earlier mismatch cases and the GB-15 to GB-19 actions queried against our own data), cross-referenced against multiple online sources.

What is GB-17 Zheng Ying used for?

GB-17 is used for migraine and vertigo. Our own indication record is reproduced here in full — two entries, and the shortest list on this run.

• Migraine
• Vertigo

Two entries, and the page will not stretch them. Counted across the run: GB-15 six, GB-16 four, GB-17 two, GB-18 four, GB-19 six. GB-17 is the sparest by a clear margin, and it records nothing its neighbours do not — headache or migraine and vertigo are carried by all five. Where a record is this short this library states its limits plainly rather than filling the space, as it does at BL-06, SI-13, SJ-14 and DU-07.

“Migraine” is a modern diagnosis, and our record uses it outright. That is uncommon in our indication data, where head symptoms are normally recorded as headache — and on this very run, GB-15, GB-16, GB-18 and GB-19 all say headache while GB-17 says migraine. Only a handful of our records name a modern diagnostic entity directly; SJ-11 and BL-26 (sciatica) are the others this library has flagged. A named condition and a description of symptoms are not the same kind of claim, and where our source material makes the stronger one, the page says so rather than passing it along unremarked.

An honest note. Migraine deserves proper medical diagnosis and management — effective preventive and acute treatments exist, and an undiagnosed headache disorder is not well treated. A sudden severe headache unlike any before, or one with fever, neck stiffness, weakness, confusion or visual loss, is a MEDICAL EMERGENCY. A change in a long-standing headache pattern needs assessment. Vertigo requires assessment, and sudden vertigo with headache, double vision, weakness or slurred speech is an emergency. This record documents classical use only.

How it is combined. With GB-16 in front and GB-18 behind, at 1.5 cun on either side. With GB-20 Feng Chi, the curve’s far anchor, and GB-15 Tou Lin Qi, its near one. With Tai Yang at the temple and LI-04 He Gu distally. All held here.

Source: Sacred Lotus sources & references (indication record, with the GB-15 to GB-19 lists counted and compared; the BL-06, BL-26, DU-07, GB-15, GB-16, GB-18, GB-20, LI-04, SI-13, SJ-11, SJ-14 and Tai Yang records queried from our own data), cross-referenced against multiple online sources.

Where is GB-17 Zheng Ying located?

GB-17 is on the scalp, one and a half cun behind GB-16, on a curved line from GB-15 back to GB-20 that follows the contour of the skull.

• 1.5 cun posterior to GB-16 Mu Chuang
• On a curved line from GB-15 to GB-20 Feng Chi, following the contour of the cranium — our record specifies the path
• GB-18 Cheng Ling lies 1.5 cun further back

GB-17 is the middle link of an equal-step chain, which is the weakest position in it. Our records place GB-16, GB-17 and GB-18 at 1.5 cun intervals measured from one another, running back from GB-15 toward GB-20. That is one of four construction types this library has documented on the head, and the only one that is not self-correcting: a fraction-of-a-span placement holds whatever the size of the head, while an equal-step chain accumulates error at every link. Our GB-16 record sets out the four methods and the difference between them.

Which means GB-17 inherits any error at GB-15 and GB-16, and passes it on to GB-18. The practical answer is the same as for the vertebral chains on the back that this library keeps flagging: check against the far anchor. GB-20 sits in the hollow below the occiput and GB-19 directly above it — both fixed independently of the chain — so the curve can be verified from its far end rather than trusted from its near one.

“Following the contour of the cranium” is part of the location. The 1.5 cun is measured along the curve of the skull, not as a straight-line distance, and over a curved surface those differ.

On the name. “Zheng Ying” — Upright Construction in our record, with other readings in circulation. As noted above, this page does not settle it.

Source: Sacred Lotus sources & references (location and translation records, retained unchanged including the contour specification; the GB-15, GB-16, GB-18, GB-19 and GB-20 records queried and the four head construction types compared against our own data).

• A Manual of Acupuncture (p. 434): In the parietal region, on a curved line drawn between Toulinqi GB-15 and Fengchi GB-20, following the contour of the cranium, 1.5 cun posterior to Muchuang GB-16.
• Chinese Acupuncture and Moxibustion (p. 213): On the head, 2.5 cun above the anterior hairline and 2.25 cun lateral to the midline of the head.

How is GB-17 Zheng Ying needled?

Our own record states SUBCUTANEOUS insertion — the needle laid along under the skin — to roughly 0.3–0.5 inch, with moxibustion applicable. What follows is a neutral record of what the reference literature documents. It is not instruction, and this page does not teach technique.

• Angle and depth as recorded: subcutaneous (transverse), 0.3–0.5 inch — identical across all five points of this run, and identical again to every other scalp point in this library, on the Bladder channel and the Governing Vessel alike.
• Moxibustion: recorded as applicable at all five points of this run.
• Regional anatomy: the epicranial aponeurosis lies beneath thin skin over the parietal bone; branches of the superficial temporal and occipital vessels and nerves run in the region; the parietal bone lies directly beneath.

Why subcutaneous, and why that is the whole safety story. There is bone immediately under the scalp, so the transverse angle is what the anatomy permits rather than a stylistic choice. This is a low-hazard point in that specific sense: no cavity, no organ, no major vessel. The scalp is richly vascular and bleeds readily — a nuisance rather than a danger.

The boundary is at the far end of this curve, not here. GB-20 Feng Chi sits in the soft hollow below the occipital bone, where nothing stops a needle and the brainstem lies deep, and our GB-20 record carries an explicit caution for that reason. GB-17 is on bone, well forward of that boundary. The caution is not imported, and this point’s safety is not exported along the curve to where it does not hold — our GB-19 and BL-09 records draw the same line from closer in.

What is not claimed. No study measuring a safe depth at GB-17 could be located, and none is borrowed. Neither measured-depth study this library uses reaches the head. No case report naming GB-17 was located.

Source: Sacred Lotus sources & references (needling record, retained unchanged, and the recorded insertions across GB-15 to GB-19 compared; the BL-09, GB-19 and GB-20 records queried and GB-20's caution attributed to that point), cross-referenced against multiple online sources; regional anatomy from standard anatomical description.

Is there research on GB-17, and what should a reader know?

No trial isolates GB-17. Where the point appears it is one component of a headache protocol, and a study that includes a point in a protocol is not evidence about that point. It is one of the less-used points on the channel.

Migraine has a substantial acupuncture literature, and a reader searching this point’s first indication will meet it — built on multi-point protocols around GB-20, Tai Yang, LI-04 and SJ-05. Evidence about a protocol is not evidence about a point within it. And “scalp acupuncture” is a distinct modern system with its own zones and trials, not the same thing as the classical channel points on the head. Neither literature is claimed here.

What this page can state with confidence, including its limits. GB-17 holds two recorded indications — the shortest list on its run, and neither unique to it. It sits at the middle link of an equal-step chain, the one construction type on the head that accumulates error rather than correcting it, so it inherits any error in front of it and passes it on behind. And its recorded action pacifies the Stomach while its indications contain nothing digestive — the eighth such field mismatch documented in this project.

Eight instances make that a finding about the material itself: in this data the action fields consistently claim more than the indication fields support. It is not an error in any single record, and it is exactly why both fields are reproduced in full on every page here rather than one being summarised.

A note on searching for it. “GB 17”, “G 17” and “Zhengying” searches return protocol trials and a large volume of unrelated material — “Zhengying” matches personal names and ordinary vocabulary. The point’s English rendering also varies between sources, which makes name-based searching less reliable than usual. Any claim attached to this point should be checked against what a study actually used.

Source: Sacred Lotus sources & references (action, indication, location and translation records, with the two fields compared directly; the eight mismatch cases counted and the GB-15 to GB-19 lists compared, against our own data).