For male fruit flies, sperm is not enough in the battle to reproduce – at each mating a cocktail of proteins is transferred to the female, many of which directly influence female behaviours in ways ...

Scientists have detected microplastics — the tiny and pervasive fragments now found in our seas, drinking water, food and, increasingly, living tissue — in human semen and follicular fluid, according ...

Just like urine and stool, semen can provide important clues about a man’s health. Variations in its color, texture, smell and volume can signal underlying health conditions. Understanding these signs ...

Seminal fluid contains protein factors that, when transferred from a male to a female at mating, affect reproductive success. This is true of many different animals, from crickets to primates. In ...

For a small but suffering contingent of women, an allergy to semen is seriously interfering with intimacy. A semen allergy, also known as seminal plasma hypersensitivity (SPH), is a rare reaction to ...

Imagine itching, burning, swelling, or even struggling to breathe just moments after sex. For a small but growing number of women, that's not an awkward anecdote—it's a medical condition. It's called ...