A common birthplace of new genes, the male testes are a hotspot for biological innovation. Within these organs, scientists have found a trove of virgin genetic sequences -- and a better understanding ...

In boys with undescended testis, the risk of developing infertility is traditionally predicted based on a decrease in germ cell count observed using testicular biopsy samples. However, the process of ...

Many people with testicular cancer don’t have a family history of it. Still, your risk may be much higher if you have a parent or sibling with the disease. But environment and hormones also play a ...

In a small number of people, testicular cancer can run in families. Having a parent or brother with testicular cancer can increase a person’s risk of getting it. Also, some inherited conditions can ...

Deletion of hsf5 in mice results in the impaired development of testis (left), and the absence of spermatids and spermatozoa (right), which leads to the failure of sperm formation. Kumamoto University ...

In the battle of the sexes, males appear to have the innovative edge--from a genetic standpoint, at least. Scientists are finding that the testes are more than mere factories for sperm; these organs ...