Chiropractic
Chiropractic (spinal manipulative therapy)
Evidence grade varies by use. See the breakdown on the entry. Read how the Atlas grades evidence.
Evidence diverges sharply by indication, so it is graded separately. For acute and chronic low back pain and neck pain, proponents and several clinical guidelines report that spinal manipulative therapy produces small improvements in pain and function comparable to other recommended manual and active care; Cochrane reviews and NCCIH both rate the underlying evidence as low to very low quality and not clearly superior to sham or other active treatments. For "subluxation"-based claims that manipulation treats non-musculoskeletal conditions (asthma, infantile colic, ear infections, hypertension, immune function), controlled evidence does not support benefit and the proposed mechanism is unsupported. The headline grade of 2 reflects the limited, low-certainty musculoskeletal evidence; see the split for the much weaker visceral/systemic claims.
Reference only. Not medical advice.
| Treatment | Grade | Notes |
|---|---|---|
| Acute low back pain | 2 of 5 | Limited evidence of small short-term pain and function gains, comparable to other manual care; Cochrane rates quality low and benefit over sham unclear. |
| Chronic low back pain / neck pain | 2 of 5 | Limited evidence of small improvements; recommended as one option in several guidelines, but low certainty and not clearly better than active alternatives. |
| Tension-type / cervicogenic headache | 2 of 5 | Preliminary evidence of modest benefit for some headache types; small trials, mixed quality. |
| Non-musculoskeletal 'subluxation' claims (colic, asthma, ear infection, hypertension) | 1 of 5 | Theory outpaces evidence; controlled trials do not support benefit and the subluxation mechanism is unsupported. |
What can go wrong
For low back manipulation, reported adverse events are usually mild and transient (local soreness, stiffness, temporary symptom flare). The serious concern is high-velocity manipulation of the neck (cervical spine), which has documented case reports of vertebral and carotid artery dissection leading to stroke, paralysis, and rarely death. Whether neck manipulation causes these events or is a coincidental trigger sought by patients already experiencing an evolving dissection (protopathic bias) is genuinely disputed; either way the events are rare but catastrophic when they occur. Spinal manipulation of infants and young children carries its own safety debate and has been restricted in at least one jurisdiction. Conditions involving the spine, neurology, or systemic disease warrant evaluation by a licensed clinician before manual treatment.
This is something to take to a clinician. The Atlas can tell you what is known about chiropractic in general. It cannot tell you what is happening in your body, and the difference matters most for exactly the symptoms that bring people to this page.
Chiropractic is a licensed manual-therapy profession centered on hands-on adjustment of the spine and joints. Its credible clinical territory is narrow: proponents and several clinical guidelines report that for short-term low back and neck pain, spinal manipulation delivers small improvements roughly on par with other recommended manual and active care, which is why those guidelines list it as one option. That reported value sits on top of low-certainty evidence and a contested founding theory. The original 1895 doctrine, that misaligned "subluxations" press on nerves and cause disease throughout the body, has been abandoned by much of the profession's own research community even as it survives in marketing and in claims that adjustment treats asthma, colic, or immune problems, where controlled evidence does not support benefit. The most consequential dispute is over safety: high-velocity neck manipulation has documented but rare associations with arterial dissection and stroke, and experts disagree on whether the manipulation causes these events or merely coincides with them. Enel presents chiropractic as a modality whose honest case is "may help your back and neck a little, short term" and not the whole-body health claims attached to its founding story.
A profession built on hands-on spinal manipulation, with one modestly supported use (short-term back and neck pain) and one founding theory most of its own researchers have walked away from.
How it is supposed to work
Established mechanism: high-velocity, low-amplitude thrust and mobilization act mechanically on spinal joints and surrounding soft tissue, with plausible short-term effects on local pain processing, muscle tone, and the audible joint cavitation ("pop"). These effects are biomechanical and neuromuscular and are the basis of mainstream manual-therapy practice. Proposed and contested mechanism: founder D.D. Palmer's original theory held that misaligned vertebrae ("subluxations") press on nerves and obstruct an innate vital force, causing disease throughout the body. The classic subluxation-causes-disease model is rejected by much of modern chiropractic research and by mainstream neuroscience as an explanation for non-musculoskeletal illness.
What people get wrong
Often saidChiropractic adjustment treats whole-body illness by freeing 'pinched' nerves from misaligned vertebrae.
ActuallyThe classic subluxation-disease theory is unsupported for non-musculoskeletal conditions and is rejected by much of the profession's own research community.
Often saidNeck adjustments are completely safe.
ActuallyHigh-velocity cervical manipulation has documented, though rare, associations with arterial dissection and stroke; whether it causes or coincides with these events is actively disputed.
Who profits, and who pushes back
American Chiropractic Association
Sells this. Has a commercial interest in a product sold as this compound, as of July 2026.
The ACA describes chiropractic as a safe, drug-free, evidence-informed approach to back pain, neck pain, and headache, and disputes that a causal link between cervical manipulation and stroke has been established.
NCCIH (U.S. National Center for Complementary and Integrative Health)
NCCIH states spinal manipulation may lead to small improvements in pain and function for low back pain, while noting the strength of the evidence is low.
Safer Care Victoria
Its 2019 independent review found very few studies on spinal manipulation in children and concluded the evidence base was thin, prompting restrictions on manipulating very young children.
Edzard Ernst
Ernst argues the subluxation concept is a fiction, that manipulation offers at best marginal benefit for back pain, and that the rare stroke risk from neck manipulation is not justified by the evidence.
Where the research comes from
Most of the published research on this comes from one place. 100% of it is from North America. Findings that no unrelated group has reproduced are weaker than the study count makes them look.
| Place | Share of published research |
|---|---|
| North America | 100% |
| Australia / New Zealand | 70% |
| Europe | 62% |
| Latin America | 40% |
| East Asia | 34% |
How we got here
Hands-on spinal and joint manipulation long predates the chiropractic profession and arises independently across many cultures. Chinese medical writing attributed to roughly 2700 BCE describes manipulation of the spine and lower limbs for joint and back complaints, and the Egyptian Edwin Smith Papyrus (composed around 1600 BCE from older material) records reduction of dislocations. Hippocrates in Greece (about 460 to 385 BCE) described traction and gravity-assisted manipulation for spinal deformity. Across India, Japan, and much of Europe and Asia, lay "bonesetters" passed manipulation down through families and villages for centuries before any formal medical claim on the technique. Chiropractic as a named, codified profession is a late North American formalization of these far older manual lineages.
Manual manipulation of the spine is ancient and multicultural, documented in Chinese, Egyptian, Greek, Indian, Japanese, and European bonesetter traditions long before any formal profession existed. Chiropractic as a distinct, codified practice was founded in 1895 in Davenport, Iowa, by Daniel David (D.D.) Palmer, a magnetic healer who delivered his first "adjustment" to janitor Harvey Lillard and claimed to have improved Lillard's hearing. Palmer framed misaligned vertebrae as the root cause of disease via interference with nerve flow and an "innate intelligence." The profession spread through the twentieth century, gradually gaining legal recognition: all 50 U.S. states had licensed chiropractic by 1974 (Louisiana last), the United Kingdom regulated it under the Chiropractors Act 1994, and statutory regulation followed in Australia, Canada, and elsewhere. Over the same period, a research-oriented wing increasingly distanced itself from the original subluxation-disease theory while retaining manipulation for musculoskeletal pain.
- ~2700 BCEChinese medical writing describes spinal and limb manipulation for joint and back complaints
- ~460-385 BCEHippocrates describes traction and gravity-assisted spinal manipulation in Greece
- 1895D.D. Palmer founds chiropractic in Davenport, Iowa, on the subluxation theory
- 1974Louisiana becomes the last U.S. state to license chiropractic; all 50 states now regulate it
- 2019Australia restricts chiropractic spinal manipulation of children under two pending Safer Care Victoria evidence review
How it is understood
Chiropractic itself is a modern professional construct rather than a living Indigenous or ceremonial tradition, so sovereignty questions are limited. The deeper manual-manipulation lineage it draws on belongs to many bonesetter cultures across Asia, Africa, and Europe whose practitioners are rarely credited in the profession's own origin story, which tends to begin in 1895 Iowa.
Where scholars disagree
Experts disagree on whether high-velocity cervical (neck) manipulation causes arterial dissection and stroke or merely coincides with an already-evolving dissection. The events are rare but severe, and the data cannot cleanly separate cause from coincidence.
Neurology and stroke researchers / critics (e.g., case-series authors, Edzard Ernst)
High-velocity neck manipulation can mechanically tear vertebral or carotid arteries, and the temporal clustering of strokes after manipulation reflects real, if rare, causation; informed consent and caution are warranted.
What it rests onDocumented case reports and case series of dissection and stroke shortly after cervical manipulation; biomechanical strain on vertebral vessels during high-velocity thrust.
Chiropractic profession and some epidemiologists (e.g., ACA, population-based study authors)
Strokes occur at similar rates after visits to chiropractors and to primary-care physicians, suggesting patients with an early dissection seek care for neck pain (protopathic bias) rather than manipulation causing the dissection.
What it rests onPopulation-based and case-control studies finding comparable stroke associations across provider types and no clear dose-response causal signal.
This disagreement is live. It has not settled.
At a glance
- Founded
- 1895, Davenport, Iowa, by D.D. Palmer; manipulation itself is millennia older
- Best-supported use
- Short-term low back and neck pain (small benefit, low-certainty evidence)
- Founding theory status
- 'Subluxation-causes-disease' model rejected by much of modern chiropractic research
- Key safety flag
- Rare arterial dissection / stroke linked to high-velocity neck manipulation; causation disputed
What this entry does not yet cover
What follows is unfinished work on our side, not a finding about Chiropractic. A short entry is not a safe entry.
- Cost and market. We have not documented what it sells for or who sells it.
- Supply chain. We have not mapped where it is made.
- Who uses it. We have not documented the user groups.
- What could change. No forward-looking summary yet.
- How it compares. We have not set it against the alternatives.
- Children and teenagers. We have not checked what is known about younger people.
- What people take it for. We have not catalogued the claims made for it.
Sources
No sources recorded for this entry yet. Nothing on this page can be checked against a citation until that changes, so treat it as a summary awaiting its evidence.