Doctors shocked as woman's blood shows XY chromosomes
Edited By WION Video Desk
Published: Dec 30, 2025, 24:04 IST | Updated: Dec 30, 2025, 24:04 IST
What if your own blood belonged to someone else? In a story that sounds like science fiction, a woman in Brazil has discovered that every cell in her bloodstream carries male XY chromosomes. This medical breakthrough is baffling the world’s top geneticists. Is it the result of a "vanishing twin" from the womb, or a mutation we’ve never seen before? We break down the science of microchimerism and the terrifying moment doctors realized her DNA didn't match her body.
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