The analysis revealed that about 2 per cent of sperm from men in their early 30s contained disease-causing mutations. That ...

“Donating sperm makes me feel good. Maybe it makes me feel wanted, and needed. Worth something to somebody else,” says Stefan, one of the subjects of “Spermworld,” the new FX on Hulu documentary that ...

New work from UC Davis and the University of Utah shows how the 3D structure of DNA inside a germ cell commits it to develop into a sperm cell. The discovery could improve understanding of fertility ...

Human sperm have long been a subject of fascination—not just for their role in fertilization, but for their remarkable ability to navigate through some of the most viscous environments in the body.

While men may be able to have children much later than women, doing so could come with an increased risk of inherited disease for their children. Researchers from the Wellcome Sanger Institute have ...

Could temperature be the real trigger behind male fertility? A new study from Washington University in St. Louis suggests exactly that—and its findings could reshape our understanding of how life ...

Researchers at Newcastle University in England report they have coaxed the first human sperm cells from embryonic stem cells, in a remarkable demonstration of how quickly the field of stem-cell ...