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The association of widely used electromagnetic waves exposure and pregnancy and birth outcomes in Yazd women: a cohort study

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Authors not listed · 2025

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Longer cell phone use during pregnancy significantly increases risk of miscarriage and abnormal birth outcomes in large Iranian study.

Plain English Summary

Summary written for general audiences

Researchers tracked 1,666 pregnant women in Iran from 2015-2019, measuring their exposure to cell phones, cordless phones, and Wi-Fi devices. Women with longer cell phone call durations during pregnancy showed significantly higher rates of miscarriage, abnormal birth weight, and abnormal infant height. The study found that every additional minute of daily cell phone use increased miscarriage risk by 0.6%.

Why This Matters

This large-scale cohort study adds crucial evidence to growing concerns about EMF exposure during pregnancy. What makes these findings particularly significant is the dose-response relationship - the more cell phone exposure, the greater the risk to pregnancy outcomes. The study tracked real-world exposure patterns over multiple years, not just laboratory conditions. The reality is that pregnant women today carry phones constantly, often keeping them close to their bodies where developing fetuses receive direct exposure. While the wireless industry continues to claim safety, this research joins dozens of other studies showing measurable harm to reproductive health. The most concerning aspect is that these effects occurred at exposure levels considered 'normal' by current safety standards - levels that millions of pregnant women experience daily.

Exposure Information

Specific exposure levels were not quantified in this study.

Cite This Study
Unknown (2025). The association of widely used electromagnetic waves exposure and pregnancy and birth outcomes in Yazd women: a cohort study.
Show BibTeX
@article{the_association_of_widely_used_electromagnetic_waves_exposure_and_pregnancy_and_birth_outcomes_in_yazd_women_a_cohort_study_ce3840,
  author = {Unknown},
  title = {The association of widely used electromagnetic waves exposure and pregnancy and birth outcomes in Yazd women: a cohort study},
  year = {2025},
  doi = {10.1186/s12884-025-07512-4},
  
}
DOI: 10.1186/s12884-025-07512-4PubMed: 40217134

Quick Questions About This Study

The Iranian study found that each additional minute of daily cell phone use increased miscarriage risk by 0.6%. Women with longer call durations showed significantly higher rates of pregnancy loss compared to those with minimal phone use.
Yes, the study found that cordless phone conversations during pregnancy increased the risk of abnormal birth weight in newborns. This suggests that various types of wireless devices, not just cell phones, may impact fetal development.
Among the 1,666 pregnant women studied, 174 mothers (10.4%) experienced preterm labor. The researchers examined whether electromagnetic exposure from common devices contributed to this relatively high rate of early births.
The study found that longer cell phone use during pregnancy increased the risk of abnormal infant height. Additionally, 7.4% of newborns had abnormal head circumference, though the direct correlation with phone use wasn't specified for this measure.
Researchers followed 1,666 pregnant women enrolled in the Yazd Mother and Child Cohort Center between 2015 and 2019, making this one of the larger long-term studies examining EMF exposure and pregnancy outcomes.