In a period of about 2 years the semen of 304 men undergoing infertility therapy and without clinical signs of reproductive organ pathologies was examined. The patients were divided into three groups concerning their mobile phone use: group A (99 men): no mobile phone use, group B (157 men): sporadically mobile phone use for the period of 1-2 years, and group C (48 men): regular mobile phone use for more than 2 years. Additionally, place of residence, age, smoking habit, and occupation were considered.
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Lower percentages in sperm motility of category A (over 50% of the sperm show motility) were found in groups B and C compared to group A. The highest number of normal sperm (higher than 30 %) was observed in group A and the lowest in group C. No statistically significant differences were noticed in the semen concentration.