Before he is born they travel down the abdomen, through the groin and into the scrotum or bag behind his penis. Sometimes they stay in the abdomen or only complete part of the journey, remaining ...

The male reproductive system has parts inside and outside the pelvis. Scrotum. This is a bag of skin outside the pelvis that holds the testicles. It helps keep the testicles at the right temperature.

Some men have little bumps on their scrotum, and they're concerned. What is this? Could it be cancer? First of all, any time you want to know could something be cancer, you need to see a doctor.