About 200 women in China were tracked, and those with at least two miscarriages had higher blood levels of several PFAS. Some PFAS exposures were associated with increased risks of unexplained recurrent spontaneous abortions. PFHxS showed one of the strongest associations and is a common water pollutant. Several associated compounds were short‑chain PFAS, which industry promotes as safer despite limited independent research indicating potential toxicity. PFAS comprise about 16,000 chemicals used to make water-, stain-, and heat‑resistant products. These persistent chemicals accumulate in people and the environment and are linked to cancer, kidney and liver disease, immune disorders, developmental harms, and reduced sperm quality.
Exposure to some toxic Pfas forever chemicals may increase the risk of having multiple miscarriages, new peer-reviewed research has found. The study, which tracked about 200 women in China, found those who had at least two miscarriages, or unexplained recurrent spontaneous abortions, showed higher levels of several types of Pfas in their blood. The study adds to a long list of reproductive harms associated with Pfas exposure.
Pfas are a class of about 16,000 chemicals typically used to make products that resist water, stains and heat. They are called forever chemicals because they do not naturally break down and accumulate in humans and the environment. The chemicals are linked to cancer, kidney disease, liver problems, immune disorders, and other serious health problems. Some Pfas compounds are linked to developmental issues like birth defects and low birth weight.
Prior studies have identified that Pfas were associated with adverse pregnancy outcomes, but the potential influence of Pfas's exposure on [recurrent miscarriages] remained uncertain, the study's authors, with the Chinese Center for Disease Control and Prevention, wrote. Our investigation identified significant associations between [some Pfas] and increased risks of unexplained recurrent spontaneous abortions. About 5% of women experience recurrent miscarriages and half of those have no explanation, according to the American College of Obstetricians and Gynecologists.
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