Abstract
To explore the differences of male semen parameters in different seasons of the year, so as to explore the potential climatic factors affecting spermatogenesis and male reproductive ability, we retrospectively analyzed 21,715 semen analysis data from January 2018 to February 2021, grouped by year and season, and finally the relationships among semen parameters and semen and meteorological parameters were compared. Environmental exposures prior to 3 months were analyzed and correlation analysis was performed.The semen concentration decreased year by year (p
Highlights
In recent years, many studies have shown that the quality of male semen has a downward trend year by year, leading to an increasing proportion of male factors with reproductive disorders [1] [2] [3]
This study aims to explore the differences of male semen parameters in different seasons of a year, so as to explore the potential influencing factors of spermatogenesis and male reproductive ability
We analyzed a total of 21,715 routine semen reports (Table 1) from January 2018 to February 2021, with a mean age of 31.19 ± 5.58, a sperm concentration of 42.34 ± 28.50 × 106/ml, total motility of 0.51 ± 0.22 and progressive motility (PR) is 0.32 ± 0.19
Summary
Many studies have shown that the quality of male semen has a downward trend year by year, leading to an increasing proportion of male factors with reproductive disorders [1] [2] [3]. Studies have shown that climate factors and air pollution may affect male reproductive ability. In the past 100 years, the global average temperature has risen by 0.74 ̊C, and the average temperature in China has risen by 0.79 ̊C. In the past 30 years, industry in China has developed rapidly, which results in increasing environmental pollution, especially the air and water pollution caused by energy utilization and industrial production [10]
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