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fetal microchimerism
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- 1Pregnancy leaves you a chimera, science reminds readers●# ICYMI : If you've ever been pregnant, you're a chimera. I've known this for several years. But what this article taugh
A biology explainer is circulating on the idea that every pregnancy makes the mother a chimera: fetal cells cross into the mother's body and can persist for decades. Commenters note that even a miscarriage very early in pregnancy, in one case more than 20 years ago, may leave behind the embryo's genetic material, which can even be passed on to later children. The claim reflects the established phenomenon of fetal microchimerism, whose long-term health effects remain an active research question.