Evidence links the gut microbiota and fertility to women’s reproductive health, influencing hormone metabolism, and ...

Despite the fact that we all start out as an egg cell in one of our mother's ovaries, these human reproductive organs are surprisingly under-studied. Scientists have been working on creating in vitro ...

Recently, scientists have reviewed the existing literature to understand how space travel, space radiation, and microgravity affect human reproductive functions. This review was published in Npj ...

Intersex is an umbrella term for people who are born with one or more traits in their chromosomes, genitals, hormones, or internal reproductive organs that don’t fit the typical male or female ...

Men have nipples because nipples begin to develop in all embryos before sex differentiation occurs in the womb. They also serve a purpose in sexual arousal.