Cryotherapy Is Effective in Nulliparous Women with Primary Dysmenorrhea: A Randomized Controlled Trial.
Borja Pérez Domínguez, Lucia Gonzalez-Ruiz, Sara Muñoz-Ibañez et al.
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In 30 seconds
This randomized controlled trial evaluated cryotherapy for primary dysmenorrhea in 58 nulliparous women, comparing pain, sleep quality, quality of life, and physical activity with a control group. Pain intensity in the cryotherapy group fell from 7.1 ± 1.4 to 1.8 ± 1.7 (p < 0.001), while the control group showed a smaller reduction from 5.9 ± 1.9 to 5.4 ± 2.1. Sleep quality improved more with cryotherapy; quality of life and physical activity did not change significantly. The findings support short-term symptom benefit, while longer-term effects remain uncertain.
Key findings
- Pain intensity decreased from 7.1 ± 1.4 to 1.8 ± 1.7 with cryotherapy (p < 0.001), versus 5.9 ± 1.9 to 5.4 ± 2.1 in controls.
- Sleep quality scores improved from 6.90 ± 3.0 to 5.03 ± 2.5 in the cryotherapy group, compared with 6.88 ± 3.6 to 5.68 ± 2.8 in controls.
- No statistically significant changes were observed in quality of life or physical activity.
Why it matters
Primary dysmenorrhea can substantially affect daily functioning. In this randomized trial, cryotherapy was associated with a marked reduction in reported pain and a more modest improvement in sleep quality, outcomes relevant to symptom burden. The absence of significant changes in quality of life or activity suggests that benefits may not extend across broader functional domains.
What to keep in mind
The abstract recommends further research to assess long-term benefits; the reported findings do not establish durability beyond the study period.