{"id":39292,"date":"2025-08-14T00:01:02","date_gmt":"2025-08-14T04:01:02","guid":{"rendered":"https:\/\/beyondpesticides.org\/dailynewsblog\/?p=39292"},"modified":"2025-08-12T16:13:49","modified_gmt":"2025-08-12T20:13:49","slug":"review-links-pesticides-and-contaminants-to-mechanisms-that-threaten-womens-reproductive-health","status":"publish","type":"post","link":"https:\/\/beyondpesticides.org\/dailynewsblog\/2025\/08\/review-links-pesticides-and-contaminants-to-mechanisms-that-threaten-womens-reproductive-health\/","title":{"rendered":"Review Links Pesticides and Contaminants to Mechanisms that Threaten Women\u2019s Reproductive Health"},"content":{"rendered":"

(Beyond Pesticides<\/em>, August 14, 2025) A review in Clinical and Experimental Obstetrics & Gynecology<\/em><\/a> links various classes of environmental pollutants including pesticides and per- and polyfluoroalkyl substances (PFAS), both of which Beyond Pesticides has extensively covered, to adverse effects on the female reproductive system and common mechanisms of toxicity. These chemicals \u201cdisrupt the hypothalamic-pituitary-gonadal axis (HPG), impair ovarian function<\/a>, and contribute to reproductive dysfunction<\/a> through mechanisms such as oxidative stress<\/a>, hormonal disruption, and epigenetic<\/a> [gene expression or behavior] modifications,\u201d the authors say. This leads to menstrual irregularities, infertility<\/a>, and pregnancy complications, as well as increases in the risk of reproductive system disorders such as endometriosis<\/a>, polycystic ovary syndrome (PCOS<\/a>), and ovarian cancer<\/a>, among others.<\/p>\n

\u201cAdditionally, transgenerational effects<\/a> mediated by epigenetic modifications, germ cell damage, and placental transfer may adversely affect offspring health, increasing the risk of reproductive dysfunction, neurodevelopmental disorders<\/a>, metabolic diseases, and cancer<\/a>,\u201d the researchers explain. This study, integrating recent epidemiological and experimental findings, provides an overview of major chemical classes that threaten women\u2019s health<\/a> and highlights the need for immediate action.<\/p>\n

As the authors point out, female reproductive health<\/a> is important not only for those who choose to plan for a family but also for the overall well-being and general health of women. Hormonal balance, immune regulation, and the proper functioning of the HPG axis are crucial in impacting other aspects of health aside from reproduction. A wide body of scientific literature finds that environmental chemicals disrupt the sensitive equilibrium of hormones within the body, as well as impair reproductive processes and contribute to long-term health outcomes. (See the Pesticide-Induced Diseases Database<\/a>.)<\/p>\n

However, many data and knowledge gaps still exist. \u201cReal-world exposure typically involves long-term, low-level exposure to complex mixtures, yet most research focuses on the high-dose effects of individual chemicals,\u201d the researchers note. They continue, \u201cAdditionally, the transgenerational [across multiple generations] effects of chemical exposure, particularly how maternal exposure<\/a> may influence health and fertility in subsequent generations, are still not fully understood.\u201d<\/p>\n

Literature Review of Multiple Chemical Classes<\/strong><\/p>\n

The authors analyze studies that link exposure to environmental contaminants with adverse effects to women\u2019s reproductive health. The chemical classes within the review include plasticizers, PFAS<\/a>, heavy metals, pesticides, organophosphate flame retardants (OPFRs), polychlorinated biphenyls (PCBs), volatile organic compounds<\/a> (VOCs), microplastics<\/a>, quaternary ammonium compounds<\/a> (QACs), and polycyclic aromatic hydrocarbons (PAHs), many of which are related to chemical-intensive land management and can exacerbate health effects through additive or synergistic effects<\/a>, like microplastics<\/a> when in contact with petrochemical pesticides and synthetic fertilizers. \u00a0<\/p>\n

PFAS<\/u><\/p>\n

As explained in previous Daily News<\/em><\/a>, the multitude of sources of PFAS and various exposure routes lead to widespread contamination of the environment and organisms. PFAS in agriculture represents a large source of exposure, as the chemicals can be pesticide active ingredients, used in the plastic containers pesticides are stored in, and as surfactants in pesticide products. Additionally, PFAS are used in many other plastic storage containers and food packaging, personal care products, nonstick cookware, cleaning supplies, treated clothing, firefighting foam, and machinery and equipment used in manufacturing\u2014all of which contaminate food, water, soil, and the air.\u00a0<\/p>\n

In the current literature review, the researchers share evidence of the link between PFAS exposure and adverse pregnancy outcomes, including hypertensive disorders such as preeclampsia<\/a>, miscarriage<\/a>, fetal growth restriction<\/a>, low birth weight<\/a>, and premature birth<\/a>. \u201cSuch exposure can disrupt hormone signaling pathways by mimicking or blocking natural hormones, leading to impaired follicular development, reduced oocyte quality, and disrupted ovulation,\u201d the authors state. \u201cThis hormonal imbalance may result in irregular menstrual cycles, amenorrhea [absence of menstruation], and overall decreased fertility.\u201d (See studies here<\/a>, here<\/a>, and here<\/a>, as well as additional studies on birth\/fetal effects in the Pesticide-Induced Diseases Database<\/a>.)<\/p>\n

Pesticides<\/u><\/p>\n

Research shows that pesticides induce oxidative stress, which leads to the generation of reactive oxygen species (ROS) that damage reproductive tissues. This can impact both males and females by impairing ovarian and testicular function, disrupting oocyte (a developing egg cell in the ovaries) maturation, and reducing sperm quality<\/a>.<\/p>\n

Study results highlighted in the review include:<\/p>\n