Yao Qi Lumbar Wonder

What does Yao Qi do?

Yao Qi is an extra point above the tailbone, belonging to no channel, so it carries no channel-theory actions — everything below is drawn from documented clinical use rather than from channel mechanics. In that documented use it is, first and above all, the classical empirical point for epilepsy and seizure disorders. That single association is what the point exists for; the rest of its recorded range is secondary and much thinner.

• The classical empirical point for epilepsy and seizure disorders — this is the point's defining documented use and the reason it entered the extra-point canon at all. It is recorded for seizure disorders of long standing rather than for an acute episode, and it is used as a supporting point within a prescription rather than as a treatment on its own.
• Used for restlessness and disturbed sleep — recorded clinically for insomnia and agitation, and grouped with the seizure indication in the older sources because both were understood as disturbances of the mind.
• Used for headache — recorded, though it is not among the points ordinarily reached for in headache.
• Used for constipation — recorded in the clinical literature for this point alongside its other indications.
• Used as a local point of the lower back and sacrum — recorded for lumbosacral pain and stiffness, which follows simply from where it sits.

A note on the language, and a correction made openly. Older descriptions of Yao Qi credit it with calming the spirit, resolving phlegm and clearing mental fog, and freeing the bowels. Those are channel and organ actions — the technical vocabulary of a system in which a point belongs to a channel that connects to an organ — and Yao Qi is on no channel. It has no five-shu, Yuan, Luo, Xi-Cleft, Back-Shu, Front-Mu or Confluent classification, and our record shows no channel, no point categories and no element. There is therefore no channel for it to free and no organ for it to resolve phlegm from. What is documented is the clinical observation: the point was used for seizures, for restless sleep and for a sluggish bowel, and that use is recorded here as use. The points that genuinely carry those actions in channel terms are all held in Sacred Lotus sources & references, and are named here so the reader is left with more rather than less:

• Resolving phlegm — ST-40 Feng Long, the Connecting point of the Stomach channel and the tradition's principal phlegm-transforming point, supported by REN-12 Zhong Wan, the Front-Mu point of the Stomach, where phlegm is held to be produced.
• Calming the spirit — HT-07 Shen Men, the Source and Shu-Stream point of the Heart channel, whose name is literally "Spirit Gate", together with the extra points An Mian and Shi Mian for sleep specifically.
• Freeing the bowels — ST-25 Tian Shu, the Front-Mu point of the Large Intestine; BL-25 Da Chang Shu, its Back-Shu point; ST-37 Shang Ju Xu, its Lower He-Sea point; and SJ-06 Zhi Gou, the forearm point whose recorded action is to move the stool.

Source: Sacred Lotus sources & references (existing action and use record, reframed as described above, and the ST-40, REN-12, HT-07, An Mian, Shi Mian, ST-25, BL-25, ST-37 and SJ-06 records queried directly); Chinese Acupuncture & Moxibustion, extra points (pp. 246–247); cross-referenced against multiple online sources.

What is Yao Qi used for?

Yao Qi is used for epilepsy and seizure disorders above everything else. The indications carried in Sacred Lotus sources & references are epilepsy, headache, insomnia and constipation; the wider reference literature adds the local lumbosacral uses set out below. These describe traditional use, not proven treatment.

• Epilepsy and seizure disorders — the point's classical and defining indication
• Convulsions
• Headache
• Insomnia and disturbed sleep
• Restlessness and agitation
• Constipation
• Pain and stiffness of the lower back and sacrum

The list is short, and that is accurate rather than a gap in the record. Yao Qi is a single-purpose empirical point with a small number of associated uses attached to it, not a broad-spectrum point.

Source: Sacred Lotus sources & references (existing indication record, with the abbreviation expanded and the list reformatted); Chinese Acupuncture & Moxibustion, extra points (pp. 246–247).

Where is Yao Qi, and how is it used in practice?

Yao Qi lies on the midline of the lower back, two cun directly above the tip of the coccyx — the tailbone — over the lower sacrum. It is found by locating the coccygeal tip and measuring two cun straight up the midline, which in most adults places it at or close to the sacral hiatus, the small gap at the lower end of the sacrum where the sacral canal opens. That position is the reason for everything else recorded about the point, including the way it is needled.

It is a single midline point rather than a bilateral pair, and it is used as a supporting point within a prescription rather than alone. In current Chinese practice it appears in two forms: as an ordinary needle laid flat under the skin and directed upward, and as a site for thread-embedding, a technique in which absorbable material is placed at the point to give a prolonged stimulus.

Which points is Yao Qi combined with?

• With DU-01 Chang Qiang — the nearest channel point, the first point of the Governing Vessel, lying between the tip of the coccyx and the anus. DU-01 is the Connecting point of the Du Mai and is itself recorded for epilepsy and mania, so the two sit side by side both anatomically and clinically. Held here.
• With DU-02 Yao Shu — the Governing Vessel point in the sacral hiatus itself, immediately adjacent to Yao Qi and likewise recorded for epilepsy and for lumbosacral stiffness. Its documented technique is oblique insertion angled upward, closely comparable to the transverse upward technique recorded for Yao Qi. Held here.
• With DU-03 Yao Yang Guan — below the fourth lumbar vertebra, level with the top of the hip bones. This is the partner point in a documented modern technique in which a long needle is threaded from Yao Qi upward toward DU-03 (see the research section). Held here.
• With DU-08 Jin Suo — "Sinew Contraction", below the ninth thoracic vertebra, one of the Governing Vessel's classical points for convulsion and epilepsy. Yao Qi and DU-08 were paired directly in the experimental seizure literature described below. Held here.
• With DU-14, the Great Hammer point at the base of the neck, and DU-20 Bai Hui at the vertex — the upper Governing Vessel points used with Yao Qi in seizure prescriptions, so that the whole length of the midline is addressed. Both held here.
• With DU-26 Shui Gou — below the nose, the classical revival point for collapse and convulsion. Held here.
• With ST-40 Feng Long — the phlegm point, added where the seizure disorder is framed in the traditional literature as phlegm obstructing the orifices of the heart. ST-40 is the point that carries that action; Yao Qi does not.

Where does Yao Qi sit among the extra points of the back?

Sacred Lotus sources & references hold a substantial group of extra points on the back and lumbar region, and it is worth knowing which does what. Hua Tuo Jia Ji is the paravertebral series running the length of the spine. Yao Yan ("Lumbar Eyes") sits in the hollows to either side of the lower lumbar spine. Shi Qi Zhui Xia lies below the seventeenth vertebra. Pi Gen is lateral to the first lumbar vertebra. Ding Chuan is at the base of the neck. Of these, Yao Qi is the only one on the midline and the only one classically directed at seizure disorders — the others are local points of the back and lumbar region, or, in Ding Chuan's case, a breathing point. Yao Qi is also the lowest of them, sitting over the sacrum rather than the lumbar spine.

Source: Sacred Lotus sources & references (existing location and use record, and the DU-01, DU-02, DU-03, DU-08, DU-14, DU-20, DU-26, ST-40, Hua Tuo Jia Ji, Yao Yan, Shi Qi Zhui Xia, Pi Gen and Ding Chuan records queried directly); Chinese Acupuncture & Moxibustion, extra points (pp. 246–247); cross-referenced against multiple online sources.

Where is Yao Qi located?

• Chinese Acupuncture and Moxibustion (p. 246-247): 2 cun directly above the tip of the coccyx

How is Yao Qi needled in the textbooks?

Reference record only — this documents what the standard texts state, not instruction for a reader. The single most important recorded fact about this point is the angle: it is needled flat under the skin and directed upward, not straight in. Sacred Lotus sources & references record subcutaneous insertion directed upward, 1 to 2 cun, with moxibustion applicable.

• Angle documented: transverse and subcutaneous, running up the midline toward the head. Perpendicular insertion is not the documented approach at this point.
• Depth documented: approximately 1–2 cun of needle laid along under the skin — a long shaft at a very shallow depth, not a deep insertion.
• Moxibustion: documented as applicable.
• Thread-embedding at this point is documented in the recent experimental literature as an alternative to repeated needling; it is a technique that by design remains superficial.

Safety reference — why the angle is what it is. Yao Qi lies over the lower sacrum, at or close to the sacral hiatus, the opening at the lower end of the sacral canal closed in life by the sacrococcygeal membrane. Deep to that membrane lies the lowest part of the epidural space, containing the sacral nerve roots and the filum terminale; this is the same gap used in conventional medicine for caudal epidural injection, which is a direct statement of what a perpendicular needle would approach. The spinal cord itself ends far above, around the first to second lumbar vertebral level, so the structures here are nerve roots and epidural veins rather than cord — but they are structures nonetheless. A needle laid flat under the skin and run upward along the midline stays in skin and subcutaneous tissue over the back of the sacrum and does not enter the canal at all. That is the whole reason the recorded technique is transverse, and it is a statement about anatomy rather than a caution added for form.

What the wider literature records. Injury to nerve roots, meninges and the epidural space from needles inserted at or near the spine is documented in the published case literature. A systematic review of 115 Chinese-language articles reporting 479 adverse events found traumatic complications in the spinal region among both the more frequent and the more serious events, and concluded that most followed improper technique rather than acupuncture as such (Zhang J et al., Bull World Health Organ 2010;88(12):915–921C, PMID 21124716, PMC2995190). We could not locate a published case report naming Yao Qi as the point at which such an injury occurred, and we do not imply that one exists. What is recorded here is what is documented: a shallow transverse technique in the reference texts, the anatomical reason for it, and a general published record of spinal-region injury from needling.

Proportion. A meta-analysis of prospective clinical studies estimated serious adverse events in acupuncture at approximately 1 per 10,000 patients and around 8 per million treatments, placing it among the safer treatments in medicine (Bäumler P et al., BMJ Open 2021;11:e045961, PMID 34489268). A transverse angle at a point like this one is part of the reason those figures look as they do. Standard clean-needle practice applies. Acupuncture is carried out only by a qualified, licensed practitioner; this record documents the literature and is not a technique guide.

Source: Sacred Lotus sources & references (existing needling record and the note on proximity to the sacral canal, retained); Chinese Acupuncture & Moxibustion, extra points (pp. 246–247); PMID 21124716 (PMC2995190); PMID 34489268 — each checked as active and not retracted.

What does the name Yao Qi mean?

Yao Qi means "Lumbar Wonder" or "Extraordinary Lumbar Point" — yao, the lumbar region, the waist or the small of the back, and qi, strange, odd, remarkable or extraordinary. The name describes the point's standing rather than its position: it is the odd or wonderful point of the lower back, so called because a point in that unlikely place was found to act on seizures. Names of this kind — qi for a point whose effect seemed disproportionate to its location — are characteristic of the extra-point canon, which was assembled from observed results rather than derived from channel theory. Other renderings encountered are "Extraordinary Lumbar", "Strange Lumbus" and "Lumbar Marvel". Our translation field for this point is empty and has not been altered; the meaning is set out here instead.

Is Yao Qi a channel point?

No. Yao Qi is an extra point — in the modern extra-point numbering, EX-B9 (older texts write M-BW-29). Extra points sit outside the fourteen channels: they were recorded for an observed clinical effect rather than derived from channel theory, so they carry no five-shu, Yuan, Luo, Xi-Cleft, Back-Shu, Front-Mu or Confluent classification, and our record accordingly shows no channel, no point categories and no element. That is why its actions are framed here as documented uses, and why any claim that Yao Qi "resolves phlegm from" or "frees" a named channel or organ should be treated with caution — no channel runs through it.

There is a particular oddity here worth noticing. Yao Qi sits on the midline of the back, which is the line of the Governing Vessel (Du Mai), and it lies between two Governing Vessel points — DU-01 Chang Qiang below it and DU-02 Yao Shu at the sacral hiatus, both held here. It is on the Du Mai's road without being one of its points. The same is true of several other midline extra points, and it is the clearest illustration of what "extra point" actually means: a location that earned a name and a use of its own without ever being absorbed into the channel system.

Is there research on Yao Qi?

No randomised trial isolates Yao Qi in humans. What does exist is unusually interesting for an extra point: two experimental seizure studies that treat it as a variable in its own right, and one human trial in which it is a named component of the technique. The animal work establishes nothing clinically and is presented here as mechanistic research rather than as evidence of effect.

• Vagal–brain circuit study, 2026. A study in Proceedings of the National Academy of Sciences examined electroacupuncture as a non-invasive substitute for vagus nerve stimulation in epilepsy. Across multiple seizure models, electroacupuncture at DU-14, the Great Hammer point at the base of the neck, activated vagal afferents and recruited neurons in the caudal nucleus of the solitary tract, suppressing seizures through a defined circuit running from there to the locus coeruleus and the amygdala. Screening vagal afferent activity, the authors then identified Yao Qi (EX-B9) as an alternative point activating the same pathway and robustly attenuating seizures, and reported that thread-embedding at either point produced sustained seizure reduction in a chronic epilepsy model (Wang Y et al., Proc Natl Acad Sci U S A 2026;123(12):e2517600123, PMID 41843666, PMC13012073). This is animal work — but it is point-specific animal work that arrived at Yao Qi by screening rather than by assumption, which is an unusual position for an extra point to be in.
• Comparative electroacupuncture study in experimental epilepsy, 2013. Rats with kainic-acid-induced epilepsy received low- or high-frequency electroacupuncture at one of four point pairs: DU-26 with DU-14; DU-08 Jin Suo with Yao Qi (EX-B9); P-06 with LI-11; and ST-40 with KI-01. Almost all combinations reduced seizure activity relative to control, and high-frequency stimulation was generally more effective than low — with the DU-08 and Yao Qi pair the one exception to that pattern, showing no significant difference between the two frequencies. The effect appeared one to one and a half hours after stimulation rather than immediately (Kang X et al., Evid Based Complement Alternat Med 2013;2013:149612, PMID 23589718, PMC3622388). Animal work again, and a two-point pair rather than a single point.
• Post-stroke fatigue, randomised controlled trial. Sixty-four patients were randomised to a Governing Vessel acupuncture protocol with or without the addition of long-needle point-toward-point insertion, one of whose three threaded lines ran from Yao Qi (EX-B9) toward DU-03 Yao Yang Guan. The added-technique group showed greater improvement in fatigue, sleep, anxiety, depression and motor scores and in several inflammatory markers (Li J et al., Zhongguo Zhen Jiu 2024;44(10):1114–8, PMID 39401807). Yao Qi is one element of a multi-point protocol, and the condition treated is not this point's classical indication.

What this does and does not support. It does not support any claim that Yao Qi treats epilepsy in people; no human trial has tested it for that. What can fairly be said is that the classical association between this point and seizure disorders has been carried into modern experimental work, that two independent animal studies found seizure-suppressing effects when it was stimulated, and that one of them proposed a specific vagal-afferent mechanism. For an extra point with no channel and no category, that is a better-supported position than most, and it is stated plainly rather than inflated.

How does Yao Qi compare with the points near it?

DU-01 Chang Qiang lies below it between the coccygeal tip and the anus, is the Connecting point of the Governing Vessel, and shares its epilepsy and mania indications while adding haemorrhoids and rectal prolapse, which Yao Qi does not carry. DU-02 Yao Shu sits in the sacral hiatus, is Yao Qi's closest neighbour on the midline, and is likewise recorded for epilepsy, stiff lower back and menstrual disorders — the practical difference between them is that DU-02 is a channel point with a channel's classifications while Yao Qi is not. DU-03 Yao Yang Guan lies higher, below the fourth lumbar vertebra. Yao Yan, the "Lumbar Eyes" extra point, sits out to either side in the lumbar hollows and is a local back point with no seizure indication; readers who have met the two names together should not confuse them. For the spirit-calming and sleep uses attached to Yao Qi in older descriptions, the points that carry that action properly are HT-07 Shen Men and the extra points An Mian and Shi Mian, all held here.

Source: Sacred Lotus sources & references (name, extra-point status, existing records, and the DU-01, DU-02, DU-03, DU-08, DU-14, DU-20, DU-26, HT-07, ST-40, Yao Yan, An Mian and Shi Mian records queried directly); Chinese Acupuncture & Moxibustion, extra points (pp. 246–247); PubMed PMID 41843666 (PMC13012073), 23589718 (PMC3622388), 39401807 — each verified resolvable and checked for retraction status before citation; cross-referenced against multiple online sources.