The reproductive system refers to the organs involved in producing children. Learn more about the male and female reproductive system here.

Producing sperm is the main function of the male reproductive system. Keep reading to learn about how your body makes sperm, what it is made of, how to produce healthier sperm, and more.

A protein called COUP-TFII determines whether a mouse embryo develops a male reproductive tract, according to new research. The discovery changes the long-standing belief that an embryo will ...

Understanding how these new birth control methods work requires a refresher on the male reproductive system.

Semen is a whitish bodily fluid that contains sperm, which are male reproductive cells. It comes out of the penis when a person ejaculates.

What Does the Prostate Do? The prostate is a small gland that is part of the male reproductive system. It's supposed to be about the shape and size of a walnut.

However, Yao's work demonstrated that female embryos actively promote the elimination of the male tract through the action of COUP-TFII, challenging the female by default theory.