What is acupuncture, and what to expect?

If you've heard people talk about acupuncture and wondered what it actually involves, you're in good company. It's one of the most widely known therapies that sits outside conventional medicine, and a lot of Canadians are curious about it without quite knowing what a session looks like or what the research says. This guide walks through the basics: what acupuncture is, what happens at an appointment, what it tends to feel like, how it's regulated in Canada, and what the evidence does — and doesn't — tell us. We're not here to talk you into it or out of it. Our job is to lay out the picture clearly so you can have a better conversation with a regulated health professional.

What acupuncture is

Acupuncture involves inserting very thin needles through the skin at specific points on the body. It began thousands of years ago as part of traditional Chinese medicine and is now practised in many countries [2]. Practitioners who follow the traditional approach describe it in terms of the flow of energy, often called qi, through channels in the body, and they use needling at chosen points to influence that flow [2]. Many practitioners today also describe what they do in more conventional terms, such as affecting nerves, muscles, and connective tissue.

It's worth being clear about how we're framing this. These are descriptions of how practitioners understand and explain their own work — not claims by this directory that acupuncture works in a particular way. Whether the traditional model matches what science can measure is a separate question, and one that researchers are still sorting out.

What a session usually involves

A first visit typically starts with questions. The practitioner will usually ask about your health history, your reason for coming in, your sleep, digestion, and stress, and they may look at your tongue or feel your pulse as part of a traditional assessment.

For the treatment itself, you'll usually lie down while the practitioner inserts a number of thin needles at chosen points — these might be near the area of concern or somewhere else entirely, such as the hands, feet, or ears. The needles are much finer than the ones used for injections or blood tests. Once they're placed, they're often left in for roughly 15 to 30 minutes while you rest. Some practitioners gently move or twirl the needles, apply a mild electric current, or use heat.

People describe the sensation differently. When a needle goes in you may feel a quick pinch, a dull ache, a tingle, or a feeling of heaviness or warmth around the point. Many people find the experience relaxing and some feel a little tired or lightheaded afterward. If anything feels genuinely painful, that's worth telling the practitioner right away.

Is it safe?

When it's done by a well-trained practitioner using single-use sterile needles, acupuncture is generally considered to have a low risk of serious side effects [1]. In many places acupuncture needles are regulated as medical devices that must be sterile and labelled for single use only, so a reputable practitioner opens a fresh, disposable needle for you and never reuses one [1].

The most common side effects are minor: soreness, and small amounts of bleeding or bruising where the needles were placed [1]. Serious problems are rare, and when they do happen they are usually linked to needles that weren't sterile or to a practitioner who wasn't properly trained — for example, infections or, very rarely, a needle placed too deeply causing injury to an organ [1]. That's a big part of why choosing a qualified, regulated practitioner matters. It's also a good idea to tell your practitioner about any health conditions, medications, or if you're pregnant or have a bleeding disorder or a pacemaker.

What the evidence says

This is the part where honesty matters most, because the research is genuinely mixed — and even expert groups reading similar studies have reached different conclusions.

Acupuncture has been studied most for pain. For several conditions, reviews have found low- to moderate-quality evidence that it may help — for example, some studies suggest it may reduce how often migraines or tension headaches happen, and it has been studied for chronic low-back pain and osteoarthritis of the knee [1]. But "may help" is doing real work in that sentence. The quality of the studies is often limited, and the size of any benefit is frequently small.

A central difficulty is what researchers call sham acupuncture — a fake version (such as shallow needling or needles placed away from traditional points) used to test whether the needling itself is doing something beyond a person's expectation of getting better. When real acupuncture is compared against this kind of placebo, the extra benefit often shrinks. A large Cochrane review of acupuncture for chronic low-back pain found only low-certainty evidence that it was better than sham for pain, with a difference that fell below the threshold usually considered clinically meaningful [3]. There's also ongoing debate about whether sham needling is truly "inactive," which makes these studies hard to interpret [3].

Guidelines disagree as a result. The UK's National Institute for Health and Care Excellence (NICE) reviewed the evidence and, in its 2021 guideline, recommended that a course of acupuncture be considered as one option for chronic primary pain in people aged 16 and over [4]. Other reviews and guidelines have been more cautious for other conditions. Two reasonable groups can look at overlapping evidence and land in different places — which is a fair sign that this is an area where the science isn't settled.

The bottom line is not "it works" or "it doesn't." It's that the evidence is modest and mixed, stronger for some uses than others, and best discussed for your specific situation with a regulated professional.

Is acupuncture regulated in Canada?

It depends on where you live. Acupuncture is regulated in some provinces and not others. British Columbia and Ontario regulate both traditional Chinese medicine practitioners and acupuncturists, while Alberta, Quebec, and Newfoundland and Labrador regulate acupuncturists [5]. In the regulated provinces, titles such as "Acupuncturist" are protected, meaning a person has to meet the college's standards to use them [6]. In provinces without regulation, there's no single standard, so it's up to you to check a practitioner's training and credentials [6].

Because of this patchwork, it's worth confirming how acupuncture is regulated in your own province and looking for someone registered with the relevant provincial college where one exists.

A reasonable next step

If you're curious about acupuncture, a sensible first move is a conversation with a licensed, regulated health professional — your family doctor, a physiotherapist, or a regulated acupuncturist. They can look at your particular situation, flag anything that needs different care, and help you weigh acupuncture alongside other options. The research can describe general patterns, but only a qualified professional can help you decide whether it's a reasonable fit for you.

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