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Science News for June 10, 1999


Embryos that implant in uterus 'late' prove more likely to die in first weeks of pregnancy

Fetuses that implant late in the uterus have a higher risk of dying in the first weeks of pregnancy. The study found that if a fertilized egg implanted on or after day 12, it had an increased chance of loss, with risks reaching as high as 82%. Daily urine testing revealed that these lost fetuses tended to implant later than those that ...

SourceNIH/National Institute of Environmental Health Sciences·JournalNew England Journal of Medicine·DateJun 10, 1999