Sperm counts in men worldwide are falling at an accelerating rate, according to a new study. Between 1973 and 2018, the average sperm concentration fell by more than 51 percent — from 101.2 million to 49 million sperm cells per milliliter of semen.
The data would also indicate that “this global decline is accelerating in the 21st century,” according to a study published Tuesday in the journal Human Reproduction Update.
According to the researchers led by the Israeli epidemiologist Hagai Levine, the amount of sperm is currently decreasing by 1.1 percent per year. The reasons for this are unclear. More research and measures are therefore urgently needed to prevent male fertility from deteriorating further.
Data from 223 studies analyzed
For their meta-analysis, the researchers evaluated data from more than 57,000 men from 223 studies in 53 countries. In fact, it confirmed the findings of a 2017 study, which was criticized at the time for only containing data from North America, Europe, Australia and New Zealand.
Source: Krone
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