Unplanned pregnancy affects up to 65% of women in some regions of Brazil, contributing to unsafe abortions and maternal mortality. The copper IUD is an effective long-term contraceptive but is underused, with only 4.4% of women of reproductive age using it. One barrier is the pain during insertion, leading to low adherence. Photobiomodulation (PBM), which has anti-inflammatory and analgesic effects, may offer a solution. This study aims to assess PBM's efficacy as a preemptive analgesic during copper IUD insertion in a randomized, double-blind trial involving 72 participants. The experimental group (n=36) will receive active PBM, while the control group (n=36) will receive PBM simulation. Pain will be measured using the Visual Analog Scale (VAS) at multiple time points, and additional outcomes include analgesic use, quality of life (WHOQOL-100), anxiety (GAD-7), satisfaction, and adverse effects. Statistical analysis will include tests such as the Friedman test, logistic regression, and ANOVA, with a significance level of 5%.
Age range
18 Years – 50 Years
Sex
FEMALE
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A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
Pain in baseline
Timeframe: baseline
Pain in five minutes
Timeframe: 5 minutes