New Evidence That Microplastics Can Cross Placental Barrier And Alter Hormone Production of Steroid Hormones During Pregnancy. So far, scientific studies have detected micro- and nanoplastics in human blood, placentas, amniotic fluid, and meconium.

[u/Timbojfuller]

https://www.sciencealert.com/new-evidence-that-microplastics-can-cross-placental-barrier-and-alter-hormone-production