New study: COVID-19 vaccination shows no negative effect on semen quality

We give the all-clear: A recent study shows that the administration of an mRNA vaccine from Biontech/Pfizer or Moderna, as protection against Corona infection, has no effect on male fertility. A COVID-19 infection, on the other hand, is a high risk factor for fertility. For this reason, we recommend COVID-19 vaccination to every male of wishing to become a father someday.

More and more people are getting vaccinated against the coronavirus. However, many men who wish to have children are still concerned that the COVID-19 vaccination could have a negative effect on their ability to conceive. However, a recent study by the Miller School of Medicine at the University of Miami (USA) and available data from the Kinderwunschzentrum an der Wien now give the all-clear: the mRNA vaccines are harmless with regard to male fertility. Sperm quality and count were not affected after vaccination, the study found. "We clearly and unreservedly advocate COVID-19 vaccination for men. Especially for men with a current but also future desire to have children, we recommend vaccination, as a COVID-19 infection can most likely lead to fertility restrictions," said Univ. Prof. Dr. Andreas Obruca.

COVID-19 vaccination shows improvement in semen quality

The study results even show slight improvements in sperm quality after vaccination. This is also confirmed by fertility expert Prof. Obruca: "Since the COVID-19 vaccine from Biontech/Pfizer and Moderna is not a live vaccine, a restriction of male fertility due to the vaccination could be excluded, taking into account the previous data. Through this study, it has now been confirmed that men can be vaccinated without any negative impact on their fertility."

A semen sample two to seven days before the first vaccine dose was compared to a semen sample 70 days after the second vaccine dose. Prior to providing the semen sample, study participants maintained sexual abstinence for up to seven days. The examination included sperm concentration, appearance and total motile sperm count.

Partner should vaccinated as well

However, vaccination of one's own partner and close contacts is at least as important. Pregnant women have an increased risk of becoming severely ill with COVID-19 and can avoid premature births and consequential damages of the COVID-19 disease through appropriate vaccination protection. The expert of the Kinderwunschzentrum an der Wien is therefore also clearly in favor of a Corona vaccination during and before pregnancy. Ideally, the vaccination should take place after the first trimester of pregnancy.




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