{"id":42077,"date":"2026-07-21T00:01:04","date_gmt":"2026-07-21T04:01:04","guid":{"rendered":"https:\/\/beyondpesticides.org\/dailynewsblog\/?p=42077"},"modified":"2026-07-20T13:14:13","modified_gmt":"2026-07-20T17:14:13","slug":"pesticide-exposure-linked-to-thyroid-dysfunction-and-thyroid-cancer-literature-review-finds","status":"publish","type":"post","link":"https:\/\/beyondpesticides.org\/dailynewsblog\/2026\/07\/pesticide-exposure-linked-to-thyroid-dysfunction-and-thyroid-cancer-literature-review-finds\/","title":{"rendered":"Pesticide Exposure Linked to Thyroid Dysfunction and Thyroid Cancer, Literature Review Finds"},"content":{"rendered":"

(Beyond Pesticides<\/em>, July 21, 2026) A literature review in Current Opinion in Endocrine and Metabolic Research<\/em><\/a> highlights research connecting pesticide exposure to thyroid hormone alterations and thyroid carcinogenesis (cancer<\/a>). Studies find that exposure to pesticides, whether through occupational, residential, or dietary routes, can lead to endocrine disruption<\/a>, thyroid dysfunction<\/a>, and neoplasia (tumor development). \u201cWith agriculture playing an essential role in meeting worldwide demands for food and fuel, it is not only important to continue to study both acute and chronic effects of pesticide exposure on thyroid function, both environmental and occupational, but it is also important to explore the impact on multi-organ systems and transgenerational toxicity,\u201d the authors, from the University of Colorado Anschutz Medical Campus, state.<\/p>\n

According to the American Thyroid Association<\/a>, an estimated 20 million Americans currently have some form of thyroid disease, with more than 12% of the U.S. population expected to develop a condition during their lifetime. Women also face disproportionate risks, as they are five to eight times more likely than men to have thyroid problems. During her lifetime, one in eight women will develop a thyroid disorder. The American Association of Clinical Endocrinology<\/a> explains that the thyroid gland, while relatively small, plays a large role in influencing the function of important organs, including the heart, brain, liver, kidneys, and skin. \u201cThe thyroid creates two hormones\u2014triiodothyronine (T3) and thyroxine (T4)\u2014that travel throughout your body to regulate blood pressure, body temperature, heart rate, metabolism and how the body reacts to other hormones,\u201d they describe. Impacts on thyroid function thus have cascading effects throughout the body.<\/p>\n

Background<\/strong><\/p>\n

Pesticide exposure can occur directly or indirectly, in the home or workplace or by encountering persistent pesticides present in the air, food supply, soil, or water. Many pesticides are also identified as endocrine disrupting chemicals<\/a> (EDCs), which are any synthetic or natural compounds that hinder endocrine system functions and create harmful effects on organisms. These chemicals can impact the thyroid gland, which is vital in producing hormones and affects body functions.<\/p>\n

The Endocrine Society\u2019s Second Scientific Statement<\/a> on EDCs identifies specific herbicides, insecticides, and fungicides as endocrine disruptors that can impact thyroid functioning. This is \u201clikely due to the structural similarities between thyroid hormones and some EDCs.\u201d Previous research<\/a> has also connected specific pesticide exposures and thyroid carcinogenesis, highlighting the need to remove exposure routes to these harmful chemicals.<\/p>\n

Literature Review Results<\/strong><\/p>\n

In reviewing recent scientific literature, focusing primarily on epidemiologic associations and in vivo studies in the last two to five years, the authors analyzed 15 articles related to pesticide exposure and thyroid function. The results include:<\/p>\n

Epidemiological Studies on Thyroid Function<\/em><\/p>\n