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Tylenol use in pregnancy may be linked with uterus, ovary changes in daughters: Study

Researchers found prenatal acetaminophen exposure was associated with 40% smaller ovarian volume in 302 girls, but said the study does not prove cause and effect.

  • A new study published Wednesday in Human Reproduction Open found girls exposed to acetaminophen in the womb had, on average, 40% smaller ovarian volume, 13% smaller uterine volume, and 23% fewer ovarian follicles.
  • Scientists in Denmark enrolled 685 women during the first trimester of pregnancy, evaluating 302 of their baby girls at 3 months old to assess reproductive development.
  • While noting the findings are "impressive," Dr. Hugh Taylor of the Yale School of Medicine cautioned that the study does not establish acetaminophen exposure causes reproductive organ changes.
  • The American College of Obstetricians and Gynecologists maintains acetaminophen remains the safest medication for pain or fever during pregnancy, advising use only in moderation.
  • Last year, acetaminophen became a political issue when President Donald Trump urged pregnant women to "tough it out" regarding pain, despite established medical consensus supporting the drug's safety.
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A research by the University Hospital of Copenhagen-Rigshospitalet (Denmark) links the consumption of paracetamol during pregnancy with possible alterations in the reproductive development of daughters: at three months, exposed girls had smaller ovaries and uteruses, fewer ovarian follicles and lower levels of reproductive hormones. Published in Human Reproduction Open, the ... Continue reading "Why paracetamol during pregnancy is related to rep…

·Madrid, Spain
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Lean Right

In pregnancy, paracetamol is considered a painkiller of choice. Now a study on possible effects on the fertility of girls provides for discussions. A specialist classifys the results for the KURIER.

·Vienna, Austria
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Medical Xpress broke the news in Douglas, United Kingdom on Tuesday, September 8, 2026.
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