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Fertility

Synthetic (left) and natural (right) embryos to show comparable brain and heart formation.

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Synthetic mouse embryos with rudimentary brain grown in the lab

Embryo-like structures grown in an incubator instead of a uterus could lead to better treatments for infertility and a range of other medical conditions

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Light micrograph of a section through the seminiferous tubules, the site of sperm production

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Tiny bubbles in semen could contribute to 鈥榰nexplained infertility鈥�

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A sperm sample with low numbers of sperm

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Infertility in some men may be caused by X chromosome mutations

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The development of a human embryo

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Why two-thirds of IVF embryos suddenly stop developing

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Cross section of infertile mouse testis showing previously frozen transplanted rat germ cells and sperm. Frozen testicular tissue still viable after two decades.

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Rat testicle cells make sperm after being frozen for 23 years

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Doctor prepping a womans arm with alcohol swop. Female getting her arm disinfected for her covid vaccine.; Shutterstock ID 1976002664; purchase_order: -; job: -; client: -; other: -

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Covid-19 vaccines don’t affect success of fresh embryo transfer IVF

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rPGCLC-derived pups (Generated by injection of rPGCLC-derived spermatids into rat oocytes)

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Rat pups born from sperm artificially produced from stem cells

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Light micrograph cross section of a normal human testicle or testes. The tunica albuginea is the dense, white inelastic tissue immediately covering the testis. The septa extends from the tunica albuginea into the testicle, dividing the testes into lobules.

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Male fertility could be restored by reimplanting frozen testes tissue

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Oral contraceptive pill

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Contraceptive pill may reduce polycystic ovary syndrome diabetes risk

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MRI scan of human head

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Women are less likely to get pregnant for two years after a concussion

Women with concussion are less likely to conceive in the two years after their head injury than women who injured another part of their body

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Scientists have worked out how to send viable mouse sperm on postcards

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Study of how genes influence menopause may improve fertility treatment

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The number of twins in the world is the highest it has ever been

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Some mouse sperm try to sabotage rivals in race to fertilise the egg

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