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Is there a relationship between cell phone use and semen quality?

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Fejes I, Za Vaczki Z, Szollosi J, Kolosza R S, Daru J, Kova Cs L, PaL A · 2005

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Heavy cell phone users showed 17% fewer fast-swimming sperm than light users, suggesting everyday phone use may impact male fertility.

Plain English Summary

Summary written for general audiences

Researchers at the University of Szeged studied 371 men to examine whether cell phone use affects sperm quality. They found that men who used their phones more frequently and for longer periods had significantly slower-swimming sperm, with heavy users showing 48.7% fast-swimming sperm compared to 40.6% in light users. This matters because sperm motility (swimming ability) is crucial for male fertility.

Why This Matters

This 2005 Hungarian study represents early but important evidence linking everyday cell phone use to male reproductive health. What makes this research particularly significant is its focus on sperm motility rather than just sperm count. The science demonstrates that faster-swimming sperm are more likely to successfully fertilize an egg, making this 8.1 percentage point difference between light and heavy users clinically meaningful. The study's correlation coefficients, while modest, show consistent patterns across multiple measures of phone usage. What this means for you is that the radiofrequency radiation from cell phones may be affecting male fertility in ways that weren't widely recognized two decades ago. This research helped establish the foundation for dozens of subsequent studies examining EMF effects on reproduction, many of which have found similar patterns of reduced sperm quality with increased exposure.

Exposure Information

Specific exposure levels were not quantified in this study.

Study Details

This study was conducted to determine a possible relationship between regular cell phone use and different human semen attributes.

The history-taking of men in our university clinic was supplemented with questions concerning cell p...

The duration of possession and the daily transmission time correlated negatively with the proportion...

The prolonged use of cell phones may have negative effects on the sperm motility characteristics.

Cite This Study
Fejes I, Za Vaczki Z, Szollosi J, Kolosza R S, Daru J, Kova Cs L, PaL A (2005). Is there a relationship between cell phone use and semen quality? Arch Androl. 51(5):385-393, 2005.
Show BibTeX
@article{i_2005_is_there_a_relationship_2077,
  author = {Fejes I and Za Vaczki Z and Szollosi J and Kolosza R S and Daru J and Kova Cs L and PaL A},
  title = {Is there a relationship between cell phone use and semen quality?},
  year = {2005},
  
  url = {https://pubmed.ncbi.nlm.nih.gov/16087567/},
}
PubMed: 16087567

Cited By (261 papers)

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Quick Questions About This Study

Yes, research suggests cell phones may impact male fertility. A University of Szeged study of 371 men found that heavy cell phone users had significantly slower-swimming sperm compared to light users, which could reduce fertility potential.
Studies indicate phone radiation may reduce sperm quality. Research shows men who use cell phones more frequently have lower percentages of fast-swimming sperm, with heavy users showing 40.6% versus 48.7% in light users.
Cell phone use appears to negatively affect sperm motility. A 2005 study found that longer daily phone use correlated with slower-swimming sperm, suggesting prolonged exposure may impair sperm's ability to reach and fertilize eggs.
Cell phone radiation appears to reduce sperm swimming speed. Research shows that both duration of phone ownership and daily talk time correlate with decreased fast-swimming sperm and increased slow-swimming sperm in men.
Cell phone use may reduce male fertility by slowing sperm movement. Studies show heavy users have fewer fast-swimming sperm, which are essential for successful conception, though more research is needed to confirm long-term reproductive effects.