Freezing good for embryos

Friday 06 January 2012 01:00 GMT

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Babies resulting from frozen IVF embryos are bigger at birth than IVF babies created from "fresh" embryos that are transferred to the womb within days of conception, a study has found.

Researchers at the Centre for Reproductive and Genetic Health in London believe freezing embryos before implanting them may give the uterus time to recover from the hormone drugs used to stimulate the production of eggs used in IVF.

It is known that IVF babies tend to be underweight, but the latest findings suggest this may be the result of overstimulating the ovaries with fertility drugs.

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Freezing good for embryos

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