Exposure to chemical in plastic linked to human infertility

    Researchers have suggested that exposure to common environmental chemical BPA (Bisphenol-A) could be a factor as to why some infertile couples have difficulty conceiving. Patients and medical professionals should be aware that BPA may cause a significant disruption to the fundamentals of the human reproductive process and may play a role in unexplained infertility.
    A randomised trial examined 352 eggs from 121 consenting patients at a fertility clinic. An egg from each patient was not exposed to BPA and served as the control. Researchers then examined the eggs and found that exposure to BPA caused:
    A decrease in the percentage of eggs that matured.
    An increase in the percentage of eggs that degenerated.
    An increase in the percentage of eggs that underwent spontaneous activation, the abnormal process when an egg acts as though it has been fertilised, even though it has not been.
    As the BPA dose increased, there was a decreased likelihood of maturity, an increased likelihood of degeneration and an increased likelihood of spontaneous activation.