Prenatal acetaminophen exposure linked to smaller ovaries in girls, study suggests
A Danish study found that prenatal acetaminophen exposure is associated with smaller ovarian and uterine volumes and fewer egg-containing follicles in newborn girls, plus lower ovarian-reserve hormone levels. Experts caution the findings show correlation, not causation, and long-term fertility effects are unknown. The study does not suggest changing current pregnancy-treatment guidelines, and medical groups say acetaminophen remains one of the safer options when needed, though limits and alternatives should be discussed with a clinician as more research is needed.
