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: ...

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 ...

Jaiwen Hsu was an active 11-year-old when he developed pain in his left knee that forced him to sit out a few soccer games. What his parents thought was a sports injury turned out to be osteosarcoma, ...

In a groundbreaking advancement for assisted reproduction, a baby has been born following fertilization through a fully automated and digitally controlled intracytoplasmic sperm injection (ICSI) ...

Within minutes of fertilization, the egg of a fruit fly becomes a scene from the battle of the sexes. The egg attacks and destroys the cellular “power plants,” or mitochondria, from the sperm that had ...

After 18 years of infertility, a couple could finally have a baby thanks to artificial intelligence. The father had a rare condition that left him with almost no detectable sperm. Then fertility ...

Performed remotely in Mexico by engineers and embryologists in New York, an automated fertility treatment resulted in conception and, more recently, a live birth. When you purchase through links on ...