Researchers have found neonicotinoid pesticides —insect killers commonly used in farming—could damage male reproductive health.

A comprehensive review conducted at George Mason University in Fairfax, Virginia, has found consistent signs that exposure to neonicotinoid insecticides—commonly called neonics—could interfere with hormones, harm testicular tissue and reduce sperm count .

The study , led by Sumaiya Safia Irfan, an expert in epidemiology, and Veronica Sanchez, a graduate student in chemistry, examined 21 experimental studies published between 2005 and 2025.

"We concluded it is possible that exposure to these chemicals can lower sperm quality, disrupt hormones, and damage testicular tissue," Irfan said.

Neonicotinoids are among the most widely used insecticides in global

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