DU-14 (Da Zhu) Great Hammer

What does DU-14 Da Zhui do?

Da Zhui DU-14 is the great meeting point of the yang of the whole body — the place where all six yang channels of the hand and foot converge with the Governing Vessel — and it is the single most important point in the classical repertoire for clearing heat and releasing the exterior. Sacred Lotus sources & references classify it both as that Meeting Point and as a Point of the Sea of Qi. That convergence is the whole explanation of its power: one needle at the base of the neck reaches every yang channel at once.

• Clears heat — the defining action, and the reason DU-14 appears in almost every classical prescription for fever. Because all the yang channels meet here and yang governs heat, this is the point at which excess yang can be released from the whole body. It is used for high fever, for heat in the exterior, and for the steaming-bone heat of yin deficiency.
• Releases the exterior and expels wind — for the onset of an invasion: chills and fever together, aversion to cold, body aches, a stiff neck and upper back. It both firms the exterior against invasion and drives out what has already entered.
• Regulates the protective (wei) qi and firms the exterior — used where the defensive layer is weak and invasions are repeated, and where there is spontaneous sweating or night sweating.
• Treats malaria and alternating chills and fever — one of the most consistently recorded indications in the entire classical corpus, and the classic point for the shao yang pattern of alternating chills and fever.
• Tonifies yang and dispels deficiency — the counterpart action. Because it commands the body's yang, DU-14 can supplement it as well as release it; it is recorded for exhaustion, cold, weakness of the whole body, and — with moxibustion — for consumptive disorders.
• Calms the spirit and pacifies wind — recorded for epilepsy, convulsion, agitation and mania, and for the tremor and rigidity of interior wind.
• Descends rebellious qi of the Lung — for cough and wheezing, which is why DU-14 appears in the standard upper-back respiratory group alongside Fei Shu BL-13 and the extra point Ding Chuan.
• Activates the channel and relieves local pain — for rigidity and pain of the neck and upper back and for stiffness along the spine.

Source: Sacred Lotus sources & references (existing action record); Deadman & Al-Khafaji, A Manual of Acupuncture (p. 545); Chinese Acupuncture & Moxibustion (p. 231); cross-referenced against multiple online sources.

What is DU-14 Da Zhui used for?

Da Zhui DU-14 is used above all for fever, for the common cold, and for the stiff painful neck. The indications carried in Sacred Lotus sources & references are neck pain and rigidity, malaria, febrile disease, epilepsy, afternoon fever, cough, asthma, common cold and back stiffness; the standard reference literature sets them out as follows. These describe traditional use, not proven treatment.

• Febrile disease and high fever
• Common cold, with chills and fever, aversion to cold and body aches
• Malaria and alternating chills and fever
• Afternoon and tidal fever; steaming-bone heat of yin deficiency
• Night sweating and spontaneous sweating
• Pain and rigidity of the neck; inability to turn or bend the head
• Stiffness and pain of the upper back and along the spine
• Cough, wheezing and asthma
• Epilepsy and convulsion, including infantile convulsion
• Mania, agitation and restlessness
• Headache, particularly occipital headache
• Windstroke and its sequelae
• Fatigue, exhaustion and weakness of the whole body
• Skin disorders including eczema, urticaria and acne, in the classical and modern lists
• Nosebleed

Source: Sacred Lotus sources & references (existing indication record); Deadman & Al-Khafaji, A Manual of Acupuncture (p. 545); Chinese Acupuncture & Moxibustion (p. 231).

Where is DU-14 Da Zhui, and how is it used in practice?

Da Zhui sits on the midline at the base of the neck, in the hollow immediately below the spinous process of the seventh cervical vertebra — the prominent bone you can feel and often see at the bottom of the neck when the head is bent forward. Sacred Lotus sources & references place it there and note it lies roughly level with the shoulders. It is one of the easiest points on the body to find, and it is the landmark from which a great deal else is measured: Jian Jing GB-21 is located midway along the line from Da Zhui to the tip of the acromion, and the extra point Ding Chuan is measured a short distance to each side of it.

Which points is DU-14 combined with?

• For fever and the common cold — the classical pairing is Da Zhui DU-14 with He Gu LI-04 and Qu Chi LI-11, the two great heat-clearing distal points of the yang ming; Feng Chi GB-20 and Feng Men BL-12 are added at the neck and upper back where wind predominates.
• For malaria and alternating chills and fever — with Tao Dao DU-13 immediately below it, Jian Shi PC-05 and Hou Xi SI-03; this is one of the oldest recorded combinations in the literature.
• For cough and wheezing — with Fei Shu BL-13, the Lung back-shu point, and the extra point Ding Chuan, which lies a short distance to each side of Da Zhui at the same level. A data-mining analysis of 183 controlled clinical trials of acupuncture for asthma identified Fei Shu BL-13, Ding Chuan, Da Zhui DU-14, Shen Shu BL-23, Pi Shu BL-20 and Feng Men BL-12 as the six most frequently prescribed points, with Fei Shu, Feng Men, Ding Chuan and Da Zhui standing out as key nodes in the network of point combinations (Shang PP et al., Complement Med Res 2022;29(2):136–146, PMID 34875661, DOI 10.1159/000521346).
• For yin-deficiency heat and night sweats — with Fu Liu KI-07 and Yin Xi HT-06.
• For neck and upper-back rigidity — with Feng Chi GB-20, Jian Jing GB-21 and the distal point Hou Xi SI-03, the confluent point of the Governing Vessel.
• For yang deficiency and exhaustion — with Ming Men DU-04 lower on the same vessel and Guan Yuan REN-04, usually with moxibustion; the Governing Vessel is the sea of the yang channels and these are its two great warming points.

Why does DU-14's category matter?

Sacred Lotus sources & references record two classifications, and both are load-bearing. As the Meeting Point of the Governing Vessel with the Six Yang Channels of Hand and Foot, DU-14 is the one place where the entire yang system of the body converges — which is why a single point can act on fever, on the exterior, and on yang deficiency, three things that would otherwise require different points. As a Point of the Sea of Qi, it belongs with Ya Men DU-15 above it and Ren Ying ST-09 in front, the small group the Ling Shu names as the transporting points of the sea of qi in the chest — the classical basis for its action on breathing and on the qi of the whole body.

Source: Sacred Lotus sources & references; Deadman & Al-Khafaji, A Manual of Acupuncture (p. 545); Chinese Acupuncture & Moxibustion (p. 231); PMID 34875661; cross-referenced against multiple online sources.

Where is DU-14 located?

• A Manual of Acupuncture (p. 545): On the midline at the base of the neck, in the depression below the spinous process of the seventh cervical vertebra.
• Chinese Acupuncture and Moxibustion (p. 231): Below the spinous process of the seventh cervical vertebra, approximately at the level of the shoulders.

How is DU-14 Da Zhui needled?

Reference fact: the records for DU-14 specify an upward oblique angle, not a perpendicular one. Sacred Lotus sources & references record oblique insertion directed upward, 0.5 to 1.0 inch, with moxibustion applicable. The angle is the safety-relevant variable at this point, because DU-14 lies on the midline in the gap below the seventh cervical vertebra — directly over the spinal canal and the cord within it. Everything below is recorded as neutral reference data describing what the textbooks state. It is not instruction, and this page does not teach technique. Needling is carried out only by a qualified, licensed practitioner.

What the records state

• Sacred Lotus sources & references — oblique insertion directed upward (superiorly), 0.5 to 1.0 inch; moxibustion applicable.
• Chinese Acupuncture & Moxibustion (p. 231) and Deadman & Al-Khafaji (p. 545) both record oblique insertion in a comparable shallow range, and both attach a caution against deep insertion at the interspinous points of the neck and upper back.
• Moxibustion is recorded as applicable and is very widely used at this point, including in the modern trials described below, several of which used moxibustion or a medicated plaster rather than a needle at all.
• Bleeding technique. The reference literature also records DU-14 as a point at which pricking to bleed, often with cupping, is used for high fever, heat and some skin disorders. This is recorded as a described traditional technique, not as guidance.

The anatomical context

Two facts about DU-14's position are worth stating plainly as safety reference.

• It lies over the spinal canal. The point sits in the interspinous space below C7 on the midline. The recorded upward oblique angle keeps the needle beneath and along the spinous process rather than directed into the interspinous gap, and it is why deep perpendicular insertion is not what the texts describe. Traumatic injury to the central nervous system from acupuncture is documented, though rare: a systematic review of 115 Chinese-language articles reporting 479 adverse events including 14 deaths found the traumatic complications to be among the most serious recorded, and concluded that most followed improper technique and were therefore avoidable (Zhang J et al., Bull World Health Organ 2010;88(12):915–921C, PMID 21124716, PMC2995190). A companion review of the Chinese literature from 1956 to 2010 reached the same conclusion (He W et al., J Altern Complement Med 2012;18(10):892–901, PMID 22967282).
• A CT study that measured DU-14 itself — and measured it to the epidural layer. This is the point-specific measurement, and it belongs with the fact above rather than with the pleural one. A retrospective study measured, directly from CT images, the safe needling depth at 23 upper-back acupoints in 319 patients aged 4 to 18 (205 boys, 114 girls). The 23 points were DU-09 to DU-14, BL-11 to BL-17, BL-41 to BL-46, SI-14, SI-15, GB-21 and SP-21. The definition differs by point: for the Governing Vessel points on the midline, including this one, safe depth was defined as the distance from the skin surface to the epidural layer; only for the points off the midline was it the distance to the pleura. The measured depth at Da Zhui DU-14 was 33.81 ± 10.57 mm in boys and 30.70 ± 10.68 mm in girls (P = 0.012) — the deepest of the six Governing Vessel points on the list, which is what the thickness of the nuchal and upper thoracic tissue at C7 would predict. Across the five age bands it rose from 23.26 ± 4.95 mm at ages 4 to 6 to 39.29 ± 9.54 mm at ages 16 to 18 (P < 0.001), and with weight from 31.31 ± 9.68 mm in the lightest band to 38.63 ± 16.11 mm in the heaviest (P = 0.004). Multiple regression identified weight as the single most important determinant at all 23 points (Ma YC et al., BMC Complement Altern Med 2016;16:85, PMID 26922245, PMC4769822, DOI 10.1186/s12906-016-1060-x). State the limits precisely: these are children and adolescents drawn from a single Taiwanese hospital population, all of them patients rather than healthy children, and the figure is the distance at which the epidural layer is reached — not a recommended needling depth. No adult measurement at DU-14 was located and none is quoted.
• It sits at the top of the band that overlies the lung apices. DU-14 is on the midline, where the bone of the vertebra lies between the needle and the chest, so it is not itself a classic pneumothorax point — but the points measured from it are. A cadaveric study of 46 adult bodies mapping the dome of the pleura against the surrounding points named Ding Chuan EX-B1, Jian Jing GB-21, Qi She ST-11, Tian Tu REN-22 and Da Zhu BL-11 — all of them located by reference to, or in the same band as, Da Zhui — and found the pleural dome extending beyond the medial third of the clavicle in almost 60 per cent of bodies. Its conclusion was that needling to the recorded depth and angle does not reach the pleura, but that exceeding the recorded depth breaches it (Chen Y et al., Zhongguo Zhen Jiu 2006;26(5):346–8, PMID 16739850).

In 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, with roughly half of all recorded events being minor bleeding, pain or flare at the needle site (Bäumler P et al., BMJ Open 2021;11:e045961, PMID 34489268). DU-14 is a heavily used point with a good safety record; the recorded angle is a large part of why.

Source: Sacred Lotus sources & references (existing needling record); Deadman & Al-Khafaji, A Manual of Acupuncture (p. 545); Chinese Acupuncture & Moxibustion (p. 231); PMID 21124716; PMID 22967282; PMID 26922245 (PMC4769822 — full text Tables 2–6 read; measured DU-14/GV14 ITSELF, skin to epidural layer); PMID 16739850; PMID 34489268 — each record checked as active and not retracted.

What does the name Da Zhui mean?

Da Zhui (大椎) means "Great Hammer" or "Great Vertebra" — da, great, and zhui, a vertebra, and by extension the mallet or hammer a vertebra resembles in shape. The name is purely anatomical: it points at the seventh cervical vertebra, the big knuckle of bone at the base of the neck that gives the point its landmark. Of all the classical point names this is one of the plainest — no metaphor, no imagery, simply "the big vertebra".

Naming note — Da Zhui (DU-14) and Da Zhu (BL-11) are different points, and the spellings are routinely confused. The pinyin recorded in our identity field for this point reads "Da Zhu", which is the pinyin of a different point; the correct pinyin for DU-14 is Da Zhui (大椎, Great Hammer), as the translation held alongside it confirms. Readers arriving from either spelling should note the distinction.

• Da Zhui — DU-14 — 大椎, "Great Hammer." On the Governing Vessel, on the midline in the hollow below the seventh cervical vertebra. The meeting of the six yang channels with the Du Mai; a Point of the Sea of Qi. The great point for fever and for releasing the exterior. This page.
• Da Zhu — BL-11 — 大杼, "Great Shuttle." On the Bladder channel, 1.5 cun lateral to the midline beside the first thoracic vertebra — one level down and out to the side. It is the Meeting Point of the Bones and a Sea of Blood point, used for bone disorders, for the spine and for wind invasion. Sacred Lotus holds it as a separate point.

The two lie within a few centimetres of one another, which is why the confusion persists; but their characters, their channels and their functions are entirely distinct.

Is there a disagreement about where Da Zhui is?

Yes, and it is worth recording. Our location — the hollow below the spinous process of the seventh cervical vertebra — is the standard, and it is retained here. It has been the accepted anatomical description for roughly a century and is the location given in both of our reference records and in every mainstream text. A 2023 paper in Zhongguo Zhen Jiu re-examined the question against classical sources, the Ming Tang charts and the bronze acupuncture figures, and argued that Da Zhui should properly be located below the spinous process of the first thoracic vertebra rather than the seventh cervical — with the corresponding consequence that the whole run of Governing Vessel and Bladder-channel back points would shift down by one vertebral level (Zhongguo Zhen Jiu 2023;43(10):1184–8, PMID 37802527, DOI 10.13703/j.0255-2930.20221016-0001). This is one scholarly argument against a century of settled practice, not a change to the standard. It is flagged here rather than silently resolved, and our own location stands.

Is there research on DU-14 Da Zhui?

DU-14 has a genuine point-specific research literature, most of it clustered around one unexpected finding: warming the point appears to reduce the drop in body temperature that occurs under anaesthesia. Given that the point's classical identity is command of the body's yang — which in Chinese medicine is the warming aspect — this is an unusually direct convergence between the traditional description and a measurable modern outcome.

• Moxibustion at Da Zhui during caesarean delivery — a randomised controlled trial. Sixty-four women scheduled for caesarean section under spinal anaesthesia were randomised to moxibustion at Da Zhui or to sham moxibustion using a pre-combusted cooled moxa pack, 30 minutes before surgery; both groups received standard blanket warming. Hypothermia, defined as a core temperature below 36.0 °C, occurred in 62.5 per cent of the moxibustion group against 84.4 per cent of the sham group, with improved thermal comfort and no adverse effect on Apgar scores. The authors concluded it may serve as a non-pharmacological adjunct for thermoregulation, while noting it did not eliminate hypothermia or shivering (J Invest Surg 2026;39(1):2689200, PMID 42333626, DOI 10.1080/08941939.2026.2689200). This is a properly sham-controlled trial of a single named point — rare in this literature.
• The same effect with a medicated plaster. Three hundred patients undergoing prostate resection or ureteroscopic laser lithotripsy under total intravenous anaesthesia were randomised to routine warming alone or routine warming plus a medicated plaster applied to Da Zhui 30 minutes before surgery; the plaster group showed better maintenance of ear temperature and improved comfort (Zhongguo Zhen Jiu 2020;40(10):1067–70, PMID 33068347, DOI 10.13703/j.0255-2930.20190915-0001).
• Prescribing-pattern evidence in asthma. The data-mining analysis of 183 controlled asthma trials placed Da Zhui among the six most frequently selected points and among the four key nodes in the network of point combinations (PMID 34875661). This documents what practitioners choose, not whether the point works.
• Preclinical work pairs Da Zhui with other points — for example with Fei Shu and Feng Men in an asthma model (Zhen Ci Yan Jiu 2020;45:363–7, PMID 32447849), and with Ming Men DU-04 in spinal-cord-injury models (PMID 29071992; PMID 42433552). These are point-pair studies and cannot separate Da Zhui's contribution.

What is not there should be said too: despite fever and the common cold being DU-14's defining classical indications, no well-powered randomised trial isolates this point for either. The thermoregulation trials are the strongest point-specific evidence available, and they test the opposite direction — warming, not cooling.

How does Da Zhui compare with the points around it?

Ding Chuan, the extra point held here, lies a short distance to each side of Da Zhui at the same level and is measured from it; it is the modern point directed specifically at wheezing, where Da Zhui is the general yang and heat point, and the two are constantly used together. Da Zhu BL-11 sits one level down and out to the side beside T1, and is the Meeting Point of the Bones — the different point whose spelling collides with this one. Tao Dao DU-13 lies immediately below Da Zhui under the first thoracic vertebra and is its closest functional relative, sharing the malaria and febrile-disease indications. Ya Men DU-15 sits above it at the nape and is the other Governing Vessel Sea of Qi point, but carries a much stronger deep-needling caution because of its position below the occiput. Fei Shu BL-13, lower again beside T3, is the Lung back-shu point and the one to reach for when the intent is to act on the Lung as an organ rather than on the yang of the body as a whole.

Source: Deadman & Al-Khafaji, A Manual of Acupuncture (p. 545); Chinese Acupuncture & Moxibustion (p. 231); Sacred Lotus sources & references (DU-14 record and the separate BL-11 Da Zhu record); PMID 42333626; PMID 33068347; PMID 37802527; PMID 34875661; PMID 32447849; PMID 29071992; PMID 42433552 — each checked as active and not retracted; cross-referenced against multiple online sources.