Efficacy of non-pharmacological interventions for primary dysmenorrhoea: a systematic review and Bayesian network meta-analysis.

If you experience painful periods, you are not alone. Primary dysmenorrhoea — the medical term for menstrual cramps without an underlying condition — affects millions of people worldwide and can significantly impact daily life. Many people prefer to manage this pain without medication, and a growing body of research is exploring whether drug-free approaches can genuinely help.

A recent study published in BMJ Evidence-Based Medicine reviewed 33 clinical trials to compare eight different non-drug treatments for period pain. The researchers used a sophisticated statistical method called a Bayesian network meta-analysis, which allowed them to rank and compare all the treatments against each other, not just against a placebo.

The good news is that all eight approaches studied — exercise, herbal remedies, acupuncture, aromatherapy, TENS (transcutaneous electrical nerve stimulation), topical heat, acupressure, and yoga — showed measurable reductions in pain compared to no treatment at all.

When the researchers ranked the treatments, acupuncture emerged as one of the top three most effective options, alongside exercise and topical heat. Acupuncture reduced pain scores by nearly three points on a ten-point Visual Analogue Scale, a clinically meaningful improvement. Exercise performed slightly better overall, but acupuncture's results were notably consistent.

The researchers concluded that acupuncture is a potentially effective short-term treatment for period pain and represents a credible alternative or complement to pain medication. While they noted that larger, higher-quality studies are still needed to confirm these findings, the existing evidence is encouraging for anyone looking for natural options.

If period pain is affecting your quality of life and you are curious about acupuncture, consider booking a consultation with a licensed, fully qualified acupuncture practitioner to discuss whether it may be right for you.

This systematic review and Bayesian network meta-analysis (PROSPERO: CRD42022351021), published in BMJ Evidence-Based Medicine, evaluated 33 RCTs encompassing eight non-pharmacological interventions for primary dysmenorrhoea, using VAS pain intensity as the primary outcome. Databases searched included Medline, Embase, Cochrane Library, and Web of Science through October 2022, with risk of bias assessed via RoB 2.0.

In pairwise conventional meta-analysis, all eight interventions — exercise, herbal medicine, acupuncture, aromatherapy, TENS, topical heat, acupressure, and yoga — demonstrated statistically significant pain reduction versus placebo or no treatment. Bayesian network meta-analysis identified exercise (MD -3.20, 95% CI -4.01 to -2.34), topical heat (MD -2.97, 95% CI -4.66 to -1.29), and acupuncture (MD -2.90, 95% CI -3.97 to -2.85) as the highest-ranked interventions for short-term pain relief.

Clinical takeaway: Acupuncture demonstrates a clinically relevant effect size for primary dysmenorrhoea and should be considered a viable evidence-based option within an integrative short-term pain management protocol, pending larger methodologically rigorous trials.