Ding Chuan Stop Asthma, Calm Dyspnea

What does Ding Chuan do?

Ding Chuan is an extra point on no channel, so its effects are recorded from documented clinical use rather than from channel theory — and that use is overwhelmingly respiratory. The point exists for one reason: to calm wheezing and breathlessness. Its name says so, and analyses of published asthma trials confirm it is one of the handful of points practitioners actually choose for that purpose.

• Calms wheezing and breathlessness — the defining documented use, and the reason the point was named and recorded at all. It is used in asthma, in cough with wheeze, and in chronic breathlessness.
• Stops cough — recorded alongside wheezing; the two indications travel together in the sources.
• Eases oppression and tightness of the chest — the subjective sense of a blocked or constricted chest that accompanies wheezing.
• Serves as a local point for the neck, shoulder and upper back — neck rigidity and pain across the shoulders and upper back, by virtue of sitting immediately beside Da Zhui (DU-14).
• Recorded for rubella and skin eruption — a secondary indication carried in the reference literature and in Sacred Lotus sources & references.

A correction worth stating plainly: Ding Chuan is often described as "descending rebellious Lung qi". That phrase belongs to channel theory, and Ding Chuan is on no channel — it is not a Lung-channel point, nor the Lung back-shu point. The point that carries the Lung back-shu function is Fei Shu (BL-13), which lies lower on the Bladder channel. What the sources actually document for Ding Chuan is the clinical result — wheezing calmed — not a channel mechanism.

Source: Deadman & Al-Khafaji, A Manual of Acupuncture, extra points (p. 571); Chinese Acupuncture & Moxibustion (p. 245); Shang PP et al., Complement Med Res 2022;29(2):136-146, PMID 34875661; Sacred Lotus sources & references; cross-referenced against multiple online sources.

What is Ding Chuan used for?

Ding Chuan is used first and foremost for asthma and wheezing. The indications carried in Sacred Lotus sources & references are asthma, cough, neck rigidity, pain in the shoulder and back, and rubella; the reference literature sets them out as follows.

• Asthma and wheezing
• Breathlessness and difficult breathing (dyspnoea)
• Cough, including chronic and nocturnal cough
• Fullness, tightness or oppression of the chest
• Chronic obstructive pulmonary disease and other long-standing breathlessness
• Rigidity and stiffness of the neck
• Pain across the shoulders and upper back
• Rubella and itching skin eruption

Source: Sacred Lotus sources & references; Deadman & Al-Khafaji, A Manual of Acupuncture (p. 571); Chinese Acupuncture & Moxibustion (p. 245).

How is Ding Chuan used in practice?

Ding Chuan is the modern asthma point, used bilaterally at the base of the neck. It sits a short distance to either side of the hollow below the seventh cervical vertebra — the prominent bone at the base of the neck that marks Da Zhui (DU-14) — so a practitioner locates Da Zhui first and then measures out to each side. It is nearly always needled on both sides together, and is very commonly the first point of an upper-back respiratory prescription.

Which points is Ding Chuan combined with?

A data-mining analysis of 183 controlled clinical trials of acupuncture for asthma found Fei Shu (BL-13), Ding Chuan (EX-B1), Da Zhui (DU-14), Shen Shu (BL-23), Pi Shu (BL-20) and Feng Men (BL-12) to be the 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 (PMID 34875661). The combinations that follow are drawn from that analysis and from the reference texts.

• With Fei Shu (BL-13) — the single most consistent pairing: the Lung back-shu point immediately below and lateral to Ding Chuan. This pair forms the core of most upper-back asthma treatments.
• With Da Zhui (DU-14) — its immediate neighbour on the midline, and the point Ding Chuan is measured from.
• With Feng Men (BL-12) — added where wind-cold has triggered the attack; the trial analysis identified Fei Shu, Da Zhui and Feng Men together as a priority combination.
• With Pi Shu (BL-20) and Shen Shu (BL-23) — the same analysis flagged Pi Shu, Shen Shu, Fei Shu and Ding Chuan as a priority grouping, matching the treatment principle it identified: free the Lung qi while supporting Spleen and Kidney, treating both the symptom and the root.
• With Tian Tu (REN-22) and Feng Long (ST-40) — used where phlegm and a rattling chest dominate.
• With Chi Ze (LU-05) and Lie Que (LU-07) — the distal Lung-channel points added to a local upper-back prescription.

Where does Ding Chuan sit among the extra points?

Ding Chuan is one of the small group of back extra points held in Sacred Lotus sources & references, alongside Hua Tuo Jia Ji, the paravertebral series that runs the length of the spine. Ding Chuan lies at the very top of that territory. Unlike most extra points, which are peripheral additions, Ding Chuan has become a standard component of mainstream respiratory prescriptions.

Source: Shang PP et al., Complement Med Res 2022;29(2):136-146, PMID 34875661, DOI 10.1159/000521346; Deadman & Al-Khafaji, A Manual of Acupuncture (p. 571); Chinese Acupuncture & Moxibustion (p. 245); Sacred Lotus sources & references.

Where is Ding Chuan located?

• A Manual of Acupuncture (p. 571): 0.5 to 1 cun lateral to the depression below the spinous process of the seventh cervical vertebra (Dazhui DU-14).

How is Ding Chuan needled?

Reference texts record insertion at Ding Chuan as perpendicular-to-oblique and angled towards the spine, to a depth of 0.5 to 1 cun. That direction is not incidental — angling the needle medially, towards the vertebral column, is the recorded technique precisely because it keeps the needle away from the lung apex lying beneath and lateral to the point. This figure is a neutral reference fact recorded exactly as the textbooks state it; it is not an instruction, and needling is carried out only by a qualified, licensed practitioner.

Is Ding Chuan a risky point? What is the pneumothorax hazard?

Yes — Ding Chuan lies over the upper back at the root of the neck, above the apex of the lung, and needling that is too deep or angled outwards in this region carries a documented risk of pneumothorax (a punctured lung). This is recorded here as safety reference so that readers understand why the point is treated cautiously; it is not guidance for performing any technique.

• Pneumothorax is the second most frequently reported serious adverse event in acupuncture. A systematic review of the Chinese case-report literature from 1956 to 2010 identified 1,038 adverse-event cases across 167 articles, of which 307 were pneumothorax — behind only fainting (468 cases). Thirty-five deaths were recorded across the whole series. The authors attributed these events chiefly to improper technique and concluded that most were avoidable through standardised training and practice (He W et al., J Altern Complement Med 2012;18(10):892-901, PMID 22967282).
• The anatomy behind the risk has been measured. A cadaveric study in 46 adult bodies mapped the dome of the pleura (the pleural cupula) against the commonly used points around it, explicitly including Ding Chuan (EX-B1) together with Tian Tu (REN-22), Jian Jing (GB-21) and Da Zhu (BL-11). The projection of the pleural dome varied considerably between individuals, extending beyond the medial third of the clavicle in almost 60 per cent of bodies. The authors concluded that when a point is located and angled as the standard describes, the pleura is not reached — but that exceeding the recorded depth breaches the pleural membrane (Chen Y et al., Zhongguo Zhen Jiu 2006;26(5):346-8, PMID 16739850).
• Individual variation matters. Because the lung apex sits higher in some people than in others, the safe depth at this point is not the same for everyone — a further reason the recorded depth is a conservative textbook figure rather than a target.
• Warning signs after upper-back needling. The reference literature notes that a delayed pneumothorax may present hours later with sudden chest pain, shortness of breath or a persistent dry cough, and is a medical emergency requiring immediate assessment.
• Moxibustion is recorded as applicable at this point in the standard references.

Source: Sacred Lotus sources & references; Deadman & Al-Khafaji, A Manual of Acupuncture (p. 571); Chinese Acupuncture & Moxibustion (p. 245); He W et al., PMID 22967282, DOI 10.1089/acm.2011.0825; Chen Y et al., PMID 16739850.

What does the name Ding Chuan mean?

Ding Chuan means "Stop Asthma" or "Calm Dyspnea" — literally, settle (ding) the wheezing (chuan). It is one of the most transparently functional point names in the repertoire: the name is a statement of what the point was recorded for, not a poetic image of the terrain like most classical point names. That directness is itself a clue to the point's history.

Is Ding Chuan a classical point?

No. Ding Chuan is a modern extra point, designated EX-B1 in the modern extra-point numbering. It does not appear in the classical channel texts; it was described and named in the twentieth century for its observed effect on wheezing. Like all extra points it lies outside the fourteen channels and therefore carries no five-shu, yuan, luo, xi-cleft, back-shu or front-mu classification — which is why our record shows no channel and no point categories.

Is there research on Ding Chuan?

Ding Chuan has a modest point-specific literature, and it is honest to say that the one controlled trial isolating the point returned a negative result.

• A negative trial. Forty patients with acute-stage chronic obstructive pulmonary disease were randomised to transcutaneous electrical nerve stimulation at Ding Chuan (EX-B1) at 4 Hz with a 200 ms wave width, or to sham stimulation with no current at the same point. After ten days there were no significant differences between groups in FEV1, FVC or FEV1 per cent, and no significant within-group change. The authors concluded the adjuvant effect on pulmonary function was not obvious (Wen Q et al., Zhongguo Zhen Jiu 2011;31(2):97-100, PMID 21442803). The trial was small and tested one stimulation method in one condition, but it is the most directly point-specific evidence available and it did not support the intervention.
• Prescribing-pattern evidence. The data-mining analysis of 183 controlled asthma trials placed Ding Chuan among the six most frequently selected points and among the four key nodes in the network of point combinations (Shang PP et al., Complement Med Res 2022;29(2):136-146, PMID 34875661). This documents what practitioners choose, not whether the point works.
• Anatomical safety research. The cadaveric pleural-cupula study described under needling is point-specific and is the most practically important research finding attached to Ding Chuan (PMID 16739850).

Ding Chuan also appears inside many multi-point asthma and COPD protocols. Those trials evaluate the whole prescription and are not cited here as though they measured this point.

How does Ding Chuan compare with nearby points?

Da Zhui (DU-14) lies on the midline in the hollow below the seventh cervical vertebra and is the reference landmark from which Ding Chuan is measured; it is a Governing vessel point where all six yang channels of hand and foot meet. Da Zhu (BL-11) sits further out, beside the first thoracic vertebra, and is the meeting point of the sinews. Fei Shu (BL-13) lies lower still and is the true Lung back-shu point — the point to reach for when the intent is to act on the Lung as an organ. Ding Chuan is the symptomatic wheezing point that sits above all of them, and the three are constantly used together.

Source: Deadman & Al-Khafaji, A Manual of Acupuncture (p. 571); Chinese Acupuncture & Moxibustion (p. 245); PMID 21442803; PMID 34875661; PMID 16739850; Sacred Lotus sources & references; cross-referenced against multiple online sources.