The male reproductive system refers to the bodily systems responsible for sexual function in males. It consists of external and internal structures responsible for the formation, storage, and ...

Infertility is a global public health problem caused by genetic defects, lifestyle, nutrition, and factors affecting the local metabolism and microenvironment of the reproductive system. Sperm from ...

In the introduction to her latest book, “GUYnecology: The Missing Science of Men’s Reproductive Health,” Yale sociologist Rene Almeling describes a day in the life of “John,” a regular guy who is ...

Human reproduction requires both male and female gametes. Gametes are special sex cells that contain the genetic information necessary to create a new life. Men produce millions of gametes called ...