2026-09-09 from ctvnews.ca

A new study found that some girls born to mothers who took acetaminophen during pregnancy developed reproductive organ changes that could affect fertility later in life. It’s a finding the study authors say should drive future research but shouldn’t yet change how certain symptoms are treated during pregnancy.

The new research doesn’t show that acetaminophen, also known as paracetamol or Tylenol, caused the reproductive changes. Women shouldn’t be “alarmed” by the findings because the research does not establish cause and effect, study co-author Dr. Margit Bistrup Fischer said.

It also does not mean pregnant women should stop taking acetaminophen if they need it, she noted, but “it’s definitely something we need as a society to talk about and inform pregnant women more about, so they can make an informed decision.”

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