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Fertility

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Common IVF test misses some genetic abnormalities in embryos

Human embryos formed with in vitro fertilisation can develop genetic abnormalities in the time between genetic testing and implantation 鈥� though this may not affect their viability

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Illustration of a telescope focusing in on signs of perimenopause, and ignoring other symptoms

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Everything is perimenopause now 鈥� but what if it鈥檚 not?

Features
A network of nerves (white) throughout the ovary of a mouse (left) and in a fragment of human ovary (right), alongside eggs (green). A growing follicle containing an egg is shown in magenta in the human ovary

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Hidden ecosystem of the ovaries plays a surprising role in fertility

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Egg cells made with DNA from human skin fertilised in the lab

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Human eggs don’t accumulate as many mutations with age as we thought

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Babies made using three people’s DNA are free of hereditary disease

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Life

How human eggs stay fresh for decades

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Altered gut microbiome linked to fertility issues in people with PCOS

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Gay couple adopted baby girl and enjoying the parenthood

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How might society react to babies with two genetic fathers?

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Adult male mice that have two fathers and went on to have offspring of their own

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Mice with two fathers have their own offspring for the first time

We're a step closer to two men being able to have genetic children of their own after the creation of fertile mice by putting two sperm cells in an empty egg

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World’s first baby born by IVF done almost entirely by a machine

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Father’s gut microbiome may affect infant health

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Relatives of men with fertility issues may be at higher risk of cancer

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Blasting sluggish sperm with ultrasound waves gets them moving

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