Genetic errors are behind more than two thirds of early miscarriages



An ultrasound scan can usually determine if someone has had a miscarriage

Zoriana Zaitseva/Shutterstock

More than two-thirds of early miscarriages seem to be due to abnormal chromosomes, the packages of DNA within all our cells, in the embryo or fetus. The remaining third are probably also largely due to genetic factors, which we may not be able to detect yet.

Previously, it had been thought that about half of miscarriages were due to these chromosomal abnormalities. Now, a new technique has found that, in fact, the majority of early miscarriages are the…


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