The age of the father plays a role in pregnancy outcomes, with harmful genetic changes in sperm being substantially more ...

WASHINGTON — Oregon scientists used human skin cells to create fertilizable eggs, a step in the quest to develop lab-grown eggs or sperm to one day help people conceive.

Human eggs made from a volunteer’s skin DNA were fertilized in a lab in September, and some grew for nearly a week, though ...

The research could open up avenues for fertility treatments after additional refinement and trials, but it also raises ...

Genetic changes that create ever-expanding numbers of identical sperm cells are more widespread than previously thought, ...

Men having children much later in life could raise the genetic disease risk for their offspring, a study found.

Researchers reveal how certain harmful DNA variations become more common in sperm as men age, raising genetic disease risk for offspring.

Harmful genetic changes in sperm become substantially more common as men age because some are actively favored during sperm ...

Michigan State University scientists have pinpointed the molecular "switch" that supercharges sperm for their final sprint to ...

Michigan State University (MSU) researchers have identified the molecular “switch” that supercharges sperm for ...