| 1.4.0 | 11/3/2026, 12:15:37 AM UTC | minor | All four sources re-read 3 Nov 2026 (Bäumler 2021 full text via Europe PMC, MacPherson 2004 record, both MedlinePlus pages live). The infections were judged possibly related by the review's independent raters, doctors with long acupuncture experience; the review gives no count of raters, so 'two acupuncture experts' is corrected.1 block modified- Modified – Content at Block 1
Two bodies of evidence count w… lists three infections that twohe review’s raters, independent doctors with long acupuncture experts
rated asience,
judged possibly caused by treatment:…-not-do) sets out that limit.
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| 1.3.0 | 10/15/2026, 1:17:54 PM UTC | minor | Re-verified against Bäumler 2021, MacPherson 2004 and both MedlinePlus pages; no drift1 block modified- Modified – Content at Block 1
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| 1.2.0 | 10/13/2026, 5:24:46 AM UTC | minor | Link to Metal allergy and acupuncture needles1 block modified |
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| 1.1.0 | 10/9/2026, 5:19:27 PM UTC | minor | Bäumler 2021 counts attributed correctly (12.9m treatments across 21 studies; 845,000 patients in the 11-study rate analysis); AcuiQ entries now record whether a study reported a benefit1 block modified- Modified – Content at Block 1
Two bodies of evidence count w… prospective studies covering more than
845,000 patients and 7.412.9 million treatments. A 2004 survey (h…How often anything happens
TAcross 11 of its studies and more than 845,000 patients, the review found at least one adverse event, meaning any unwanted effect, in about 9 in 100 patients over a course of tre…record what a study prescribed, not what happened
to and whether it reported a benefit, not
the adverse events of the people in it, so no proto…-not-do) sets out that limit.
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| 1.0.2 | 10/2/2026, 9:49:36 AM UTC | patch | Link each cited source from the sentence that reports it1 block modified- Modified – Content at Block 1
Two bodies of evidence count w…o people after acupuncture. A 2021 systematic review (https://doi.org/10.1136/bmjopen-2020-045961)
by Petra Bäumler and collea…and 7.4 million treatments. A 2004 survey (https://doi.org/10.1136/qhc.13.5.349) by Hugh MacPherson and colleag…E. coli bacteria. MedlinePlus lists the signs of cellulitis (https://medlineplus.gov/ency/article/000855.htm) , a bacterial skin infection, …-not-do) sets out that limit.
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| 1.0.1 | 9/30/2026, 2:16:05 PM UTC | patch | Infection: the page said none occurred in the pooled studies; Bäumler 2021 Table 3 lists two erysipelas cases and one E. coli knee infection rated possibly related. Sources re-read.1 block modified- Modified – Content at Block 1
Two bodies of evidence count w…hose
cautions come from.
Infection at a needle site did not occur in theThe review’s table of serious events lists three infections that two acupuncture experts
rated as prospective studies the review pooled, although
case reports describe itsibly caused by treatment: two cases of erysipelas, a bacterial infection of the skin,
and one knee joint infected with E. coli bacteria. MedlinePlus lists the signs …-not-do) sets out that limit.
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| 1.0.0 | 9/19/2026, 5:16:03 PM UTC | major | New page. Every figure checked against the BMJ Open 2021 review (PMC8422480 full text) and the 2004 survey abstract; symptom lists against the two MedlinePlus entries.2 blocks added- Added – Content at Block 1
Two bodies of evidence count what happens to people after acupuncture. A 2021 systematic review
by Petra Bäumler and colleagues at LMU Munich pooled 21 prospective studies covering more than
845,000 patients and 7.4 million treatments. A 2004 survey by Hugh MacPherson and colleagues
followed 6,348 patients of British Acupuncture Council members by post for three months and asked
them what they had noticed. Prospective means the studies recorded events as treatment went on,
rather than collecting complaints afterwards. This page reports what they found, from the
reactions that are common and brief to the few that need a doctor.
How often anything happens
The review found at least one adverse event, meaning any unwanted effect, in about 9 in 100
patients over a course of treatment, and 9.4 events for every 100 treatments. Half of those events
were bleeding, pain or redness at the spot where a needle went in. In the patient survey, 682 of
the 6,348 patients, about 11 in 100, reported at least one event over three months. The events
they reported most were severe tiredness and exhaustion, pain where a needle went in, and
headache.
Common: a few patients in every hundred
The review sorted events into groups and estimated how often each occurs. Six groups each
affected between 1 and 5 in 100 patients over a course:
- bleeding where a needle came out
- pain at the needle site
- other reactions at the needle site
- reactions of the autonomic nervous system, the part of the nervous system that runs without
conscious control; in the two studies that recorded the most of them, these were mainly reports
of unusual tiredness after treatment
- the treated symptoms getting worse
- events the authors grouped under the central nervous system
A symptom that gets worse after treatment is sometimes called a healing crisis. The review notes
that name and still counts the worsening as an adverse event, because international consensus
treats an increase in the burden of a disease as one.
Uncommon: a few patients in every thousand
Nine more groups each affected between 1 and 7 in 1,000 patients over a course: symptoms of the
peripheral nerves, the nerves outside the brain and spinal cord; pain away from the needle site;
digestive or gynaecological symptoms; headache; symptoms of the heart and circulation; effects on
movement; skin reactions across the body; emotional reactions; and sleeping problems. Events
affecting breathing were rarer again, at about 4 in 10,000 patients.
Rare and serious
The review put serious adverse events at about 1 in 10,000 patients. In the studies it pooled,
these included a collapsed lung, fainting, circulatory collapse and admission to hospital. The three
reported most often were a collapsed lung, strong reactions of the heart and circulation
including fainting, and falls or injuries, each at 1 to 3 cases per million treatments. One study
the review cites recorded 2 collapsed lungs among more than 200,000 patients who had an average of
10 treatments each.
A collapsed lung, or pneumothorax, happens when air fills the space between the lung and the chest
wall; after acupuncture, a needle that reaches through the chest wall can let the air in.
MedlinePlus, the US National Library of Medicine’s health encyclopedia, lists its common
symptoms as sharp chest or shoulder pain made worse by a deep breath or a cough, and shortness of
breath. A larger one can add chest tightness, light-headedness and near fainting, a fast heart
rate and bluish skin. MedlinePlus advises contacting a health care provider for any of them.
AcuiQ’s point pages print a pneumothorax caution wherever a source gave one, and
Reading a point warning (/wiki/safety/reading-a-point-warning) explains where those
cautions come from.
Infection at a needle site did not occur in the prospective studies the review pooled, although
case reports describe it. MedlinePlus lists the signs of cellulitis, a bacterial skin infection, as
redness or swelling that spreads, warm skin, pain or tenderness, and fever with chills, and advises
contacting a provider right away.
What these numbers cannot tell you
The review’s authors note that the practitioners in most of the pooled studies were well
trained, and give that as the likely reason several serious events known from case reports did not
appear. Their rates describe treatment of that standard. The review also covers needling only: it
left out acupressure, laser, point injection, moxibustion on its own, and studies limited to press
needles or ear points. AcuiQ’s own entries record what a study prescribed, not what happened
to the people in it, so no protocol on this site carries a safety record of its own;
What AcuiQ does not do (/wiki/method/what-acuiq-does-not-do) sets out that limit. - Added – Sources at Block 2
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