It’s not quite time to congratulate two Sumatran tigers at the Baton Rouge Zoo for becoming fathers, but they’re on the way after veterinarians spent part of Thursday collecting their semen. The ...

Couples who undergo fertility treatments know all too well how many tests and steps they need to go through to understand the cause of their infertility and find a treatment. But a new development ...

Retrieving viable sperm from men with low fertility and from people who have used estrogen therapy for years has been a challenge, doctors say. A new, less invasive technique has promise. By ...