Male infertility crisis

Observed decline in male fertility

The male infertility crisis is an increase in male infertility since the mid-1970s. The issue attracted media attention after a 2017 meta-analysis found that sperm counts in Western countries had declined by 52.4 percent between 1973 and 2011. The decline is particularly prevalent in Western countries such as New Zealand, Australia, Europe, and North America. A 2022 meta-analysis reported that this decline extends to non-Western countries, namely those in Asia, Africa, Central America, and South America. This meta-analysis also suggests that the decline in sperm counts may be accelerating.

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