Introduction

Acupuncture is a therapeutic technique involving the insertion of fine, sterile needles into specific points on the body to relieve symptoms and support physiological balance. Rooted in traditional Chinese medicine, acupuncture is now a widely accepted component of integrative healthcare and is practised in over 100 countries.

Modern research suggests that acupuncture stimulates the nervous system, triggering the release of natural pain-relieving chemicals such as endorphins, melatonin, and serotonin. It is most commonly used for the treatment of pain, though its clinical application has expanded to include various musculoskeletal and neurological conditions. This article reviews current evidence from recent systematic reviews and clinical guidelines, focusing on the therapeutic potential of acupuncture and its role in helping patients regain control over persistent symptoms.

How Does Acupuncture Work?

While the precise mechanisms of acupuncture continue to be explored, a growing body of evidence suggests it has both local and systemic effects. Needle insertion stimulates sensory nerves, which transmit signals to the spinal cord and brain. This cascade prompts the release of neurochemicals that modulate pain perception and promote tissue healing.

Functional imaging studies indicate that acupuncture alters activity in regions of the brain associated with pain, emotion, and autonomic regulation. It may also enhance local blood circulation, influence inflammatory responses, and regulate the autonomic nervous system. These biological effects, alongside the therapeutic setting and patient–clinician interaction, contribute to acupuncture’s overall benefit.

Conditions with Strong Supporting Evidence

Low Back and Neck Pain

Acupuncture is among the most studied non-pharmacological treatments for low-back pain. A large 2018 meta-analysis involving over 8,000 participants found it to be significantly more effective than no treatment and slightly superior to sham acupuncture, for both back and neck pain. The degree of pain relief was comparable to that offered by NSAIDs.

A 2025 Cochrane overview, incorporating 31 systematic reviews and over 97,000 patients, concluded that acupuncture provides modest but meaningful improvements in both pain and function. Compared to no treatment, the pain reduction was moderate, and small functional improvements were also observed. Safety outcomes were favourable, with adverse event rates similar to those in sham-controlled groups.

Importantly, several international clinical guidelines now recommend acupuncture as a first-line or adjunctive therapy for chronic low-back pain.

Knee Osteoarthritis

Clinical trials and meta-analyses support the use of acupuncture for knee osteoarthritis, particularly in reducing pain and improving mobility. A 2024 systematic review of 10 randomised trials involving 3,221 individuals found that acupuncture delivered clinically meaningful reductions in pain and functional limitations for up to six months.

Compared with usual care or oral anti-inflammatories like diclofenac, acupuncture showed sustained benefits, though outcomes beyond six months were less consistent. Combining acupuncture with physiotherapy-based exercise did not appear to enhance results, but acupuncture alone was effective in improving pain and mobility in the short to medium term.

Migraines and Tension-Type Headaches

Acupuncture is widely used to prevent and manage headaches, including migraines and tension-type headaches. A 2024 network meta-analysis of 34 studies with 3,365 participants found acupuncture to be more effective than medication in reducing the frequency, duration, and intensity of migraine episodes.

Notably, acupuncture showed fewer side effects than pharmacological treatments and had high patient retention rates in clinical trials. The therapy was particularly effective in reducing the number of migraine days, and when combined with medication, it was also successful in shortening the duration of attacks.

These findings support the role of acupuncture in both the prevention and treatment of recurrent headaches.

Shoulder Pain

The evidence supporting acupuncture for shoulder pain is promising, though less robust than for other conditions. Small randomised trials have shown improvements in pain and shoulder range of motion, particularly in cases of rotator cuff disease and adhesive capsulitis.

A 2017 review suggested potential benefits for postoperative shoulder pain as well. While large-scale trials are lacking, acupuncture remains a reasonable option for patients with shoulder pain who seek non-drug-based pain relief.

Tennis Elbow (Lateral Epicondylitis)

Acupuncture is often used for managing lateral epicondylitis (tennis elbow). A 2023 systematic review of non-invasive treatments found that acupuncture and dry needling produced short-term improvements in pain and grip strength when compared with sham procedures.

While long-term data are limited, acupuncture may be helpful during the acute or subacute phase, especially when patients are aiming to reduce medication use or delay more invasive interventions.

Emerging and Investigative Uses

Acupuncture is being explored in the management of various other conditions. Evidence suggests possible benefits in:

• Postoperative pain relief
• Myofascial pain syndrome
• Chronic pelvic pain
• Joint pain in patients receiving breast cancer therapy

Evidence for sciatica, irritable bowel syndrome, and some neurological disorders remains inconclusive. However, ongoing research is expanding the evidence base for these and other indications.

Safety and Considerations

When performed by a trained, licensed practitioner using sterile, single-use needles, acupuncture is considered a low-risk intervention. Most side effects are mild and transient — including slight bleeding, bruising, or soreness at the needle site. Serious complications such as infection or organ puncture are rare.

Precautions should be taken in certain populations:

• Patients on anticoagulant therapy or with bleeding disorders
• Pregnant individuals (as some acupuncture points are contraindicated during pregnancy)
• Individuals with compromised immune systems

Proper screening and practitioner training are essential to minimise risks.

Conclusion

Acupuncture is a well-established, evidence-informed treatment for chronic musculoskeletal pain and selected other conditions. Research from the past decade, including recent systematic reviews, demonstrates its effectiveness in managing low-back pain, knee osteoarthritis, migraines, and more — with outcomes that often rival conventional care and fewer adverse effects.

Beyond its physiological effects, acupuncture offers patients a renewed sense of agency in managing their health. It can be a valuable tool in helping individuals regain control over chronic pain, reduce reliance on medication, and participate actively in their recovery.

For those considering acupuncture, consultation with a qualified practitioner is essential to ensure safe, individualised care as part of a comprehensive treatment plan.