Can prenatal exposure to household chemicals lower a baby boy's future fertility?

What's actually in it

Pregnant people are exposed to a mix of endocrine-disrupting chemicals (EDCs) every day. These include phthalates from plastic packaging, bisphenols from canned food liners, parabens from cosmetics, and PFAS from nonstick coatings. Individually, each chemical has known hormone effects. Together, they create a cocktail that the developing fetus absorbs through the placenta.

What the research says

A 2026 study in Andrology followed a large group of mother-child pairs to see how fetal exposure to EDC mixtures affected markers of male reproductive health. The researchers measured chemical levels in maternal blood during pregnancy, then tracked the boys' development.

Higher prenatal EDC levels were linked to changes in reproductive hormone levels in the boys, including lower testosterone and higher luteinizing hormone, a pattern that suggests the testes were underperforming. Some boys also showed smaller anogenital distance, a physical marker tied to lower sperm counts in adulthood.

The key finding was that the mixture effect was stronger than any single chemical alone. Chemicals that seemed harmless at their individual levels became a problem when combined. This matters because safety testing usually looks at chemicals one at a time.

Reducing exposure to any single chemical helps, but the real benefit comes from cutting the total load. During pregnancy, store food in glass, choose fragrance-free personal care products, avoid nonstick cookware, and eat fresh food instead of canned.