Discipline

Acupuncture

Healing Disciplines

Acupuncture is the practice of inserting thin needles at specific points on the body to regulate the flow of qi along channels called meridians, most often to relieve pain or treat functional complaints. It developed as part of Traditional Chinese Medicine and is now practiced worldwide, both within that framework and as a stand-alone technique in mainstream pain clinics. Large controlled trials find real but modest benefits over sham needling for some chronic pain conditions, while for many other claimed uses the evidence is thin or absent. It carries low direct risk when performed by a trained practitioner with sterile needles.

Facts

Disputed

Origin Period

from 100 BCE 1

The earliest surviving systematic account of acupuncture theory, the Huangdi Neijing, is traditionally dated to around the second to first century BCE, but therapeutic needling itself may be older, and historians do not agree on precisely when the practice began.

Regulatory Status

The World Health Organization added a chapter on traditional medicine, including acupuncture-related diagnostic categories, to the eleventh revision of its International Classification of Diseases in 2019. 3

In 2019 the World Health Organization added a chapter on conditions from traditional medicine to the eleventh revision of the International Classification of Diseases, including diagnostic categories drawn from Traditional Chinese Medicine that sit alongside acupuncture's more narrowly studied uses. Nature's 2019 news feature "The World Health Organization's Decision About Traditional Chinese Medicine Could Backfire" reports the scientific criticism the decision drew on publication. The method is journalistic and evaluative, canvassing practicing scientists and public health researchers on the ICD-11 chapter's diagnostic categories against the evidence base for the practices it groups together. Because the same WHO chapter bundles acupuncture's comparatively better-evidenced pain applications with diagnostic categories that have no equivalent evidence base, critics argued the regulatory recognition risks lending all of it the same unearned legitimacy, a bundling problem rather than a verdict on acupuncture's own evidence specifically.

Key Experiment

A 2018 individual patient data meta-analysis pooling nearly 20,000 patients across 39 trials found acupuncture outperformed both no acupuncture and sham acupuncture for chronic pain conditions including back, neck, and osteoarthritis pain and migraine, though the margin over sham was small. 4

Andrew J. Vickers and colleagues published Acupuncture for Chronic Pain: Update of an Individual Patient Data Meta-Analysis in The Journal of Pain in 2018, pooling raw patient-level data from nearly 20,000 patients across 39 randomised trials of chronic pain, including back and neck pain, osteoarthritis and migraine. The method is statistical, combining individual patient records rather than only published summary results, to compare acupuncture against both no treatment and sham needling controls with more power than any single trial. It found a real, statistically significant advantage over sham needling for several conditions, but a small one. Because the effect size is small enough that reasonable clinicians disagree on whether it changes practice, researchers remain divided over the finding's clinical meaningfulness even though its statistical reality in the pooled data is not itself contested.

Attestation

Earliest Attestation

Needling technique and point locations are described in detail in the Lingshu division of the Huangdi Neijing, compiled in stages from the Warring States period through the Han dynasty. 1

Origins

Place of Origin

China 1

Status

Status Today

Living tradition, practised today 1

Standing as a Comparative Category

Used, but its validity as a comparative category is disputed 2

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The Practice of Acupuncture

Acupuncture inserts fine, solid needles, and sometimes applies heat, pressure, or a mild electrical current, at points along a network of twelve primary meridians and two extraordinary vessels that traditional theory holds carry qi, the vital energy that Chinese medicine treats as the basis of health. Illness is understood as a disruption or blockage in this flow, often described through the organ systems, the zang fu, and the balance of yin and yang; needling specific points is meant to restore free circulation and rebalance the whole system rather than to treat an isolated symptom. A typical treatment plan involves a course of sessions rather than a single visit, often combined with other Chinese medicine tools such as moxibustion, cupping, or herbal formulas.

Outside its traditional framework, acupuncture is now widely offered in secular pain clinics, where practitioners often describe its target points in terms of nerves, trigger points, and connective tissue rather than qi and meridians. Large pooled analyses of controlled trials, including a 2018 individual patient data meta-analysis spanning nearly twenty thousand patients, found acupuncture outperforms both no treatment and sham needling for several chronic pain conditions, among them back and neck pain, osteoarthritis, and migraine, though the advantage over sham needling is consistently small. That narrow margin, combined with the difficulty of designing a truly inert sham needle, keeps the field divided over how much of acupuncture's benefit is specific to needling and how much reflects ritual, attention, and expectation. Serious injury is rare in trained hands, though untrained needling carries real risk of infection or organ puncture.

Evidence and the History of Testing Acupuncture

Acupuncture's clinical claims have drawn more controlled research than any other East Asian healing art, in part because inserting a needle is easier to test against a plausible sham than most other traditional therapies. Western clinical interest surged after a well known 1971 newspaper account described acupuncture anesthesia during coverage of Richard Nixon's trip to China, and by the 1990s the United States National Institutes of Health had convened a consensus panel that found the evidence supportive for some conditions, notably postoperative and chemotherapy-related nausea and certain kinds of pain, while calling evidence for most other uses insufficient.

Since then a large body of sham-controlled trials, several pooled in a widely cited 2018 individual patient data meta-analysis of chronic pain, has consistently found small but statistically real advantages of acupuncture over sham needling for conditions including back and neck pain, osteoarthritis, and migraine prevention, with benefits persisting for at least a year in some trials. The gap between real and sham needling is small enough, however, that some researchers argue it reflects imperfect blinding or a genuinely active placebo response to a ritualized, hands-on treatment rather than a needling-specific effect tied to any particular point or meridian. The World Health Organization added a chapter on traditional medicine, including practices related to acupuncture, to its International Classification of Diseases in 2019, a decision that drew public criticism from scientists who warned it risked lending unearned legitimacy to unproven diagnostic categories bundled alongside the better-tested uses of acupuncture itself.

Connections

Associated With

Bladder

Acupuncture points lie along the twelve primary meridians and two extraordinary vessels, including the Bladder meridian; needling a point is meant to affect qi flow along its meridian.