Microplastics in Placenta May Disrupt Fetal Hormone Development

A new study published in Ecotoxicology and Environmental Safety suggests that microplastics (MPs) in the placenta could act as endocrine disruptors, altering hormone levels vital for fetal growth. Researchers found that higher concentrations of placental MPs were strongly associated with changes in umbilical cord blood hormone levels. Elevated MP exposure was linked to reduced glucocorticoid hormones, which are essential for lung development, immune function, and stress regulation. Androgenic hormones, critical for brain and reproductive system development, were also affected.

The study highlights concerns that MPs may interfere with fetal development not only directly but also by transporting harmful chemicals such as bisphenols and phthalates. With global plastic pollution reaching nearly 57 million tons annually, MPs have been detected in food, water, air, and human tissues, including the brain and reproductive system. Given pregnancy’s heightened vulnerability to toxic exposures, the authors urge stronger policies to curb plastic pollution and limit human exposure.

09-09-2025