It's commonly thought that sperm "race" to the egg, with the winner fertilizing it. But is this really the case? When you purchase through links on our site, we may earn an affiliate commission.

A number of factors can play a decisive role in some couples' inability to conceive, which may lead them to turn to fertility treatments like IVF or IUI. But before couples get to that point, they ...

Fertilisation marks the beginning of pregnancy, but many people wonder what really happens when sperm meets egg. One common question often confuses: Can more than one sperm enter the egg? This blog ...

Egg fertilization is often described as an epic swim meet: Millions of sperm swim as fast as they can toward the egg until ...