CHICAGO (Reuters) - U.S. researchers have found a way to coax human embryonic stem cells to turn into the types of cells that make eggs and sperm, shedding light on a stage of early human development ...

A team of Columbia researchers has developed one of TIME Magazine’s best inventions of 2025: an innovative AI-imaging advancement that addresses male infertility. The Sperm Tracking and Recovery ...

A Danish sperm donor, who is an asymptomatic carrier of a genetic mutation increasing the risk of cancer, was used to ...

In the United States, an estimated 645,000 men ages 20 to 50 have azoospermia, a condition in which no sperm are present in their ejaculate. Now, scientists are testing a potential treatment: ...

A Danish sperm donor unknowingly carried a rare TP53 gene mutation, leading to nearly 200 children conceived across 14 ...

Nearly 200 children conceived worldwide from a Danish sperm donor unknowingly carrying a genetic mutation linked to increased ...

In-vitro gametogenesis, or IVG, is a concept that sounds like science fiction but is slowly becoming a real possibility. Imagine creating eggs or sperm from skin cells, all outside the body. It’s a ...

A man in his early 20s received a transplant of his own sperm-producing stem cells, which had been frozen since his childhood, in an attempt to regain fertility. Doctors are waiting to see if the ...