Birth

• Being born with an undescended testicle increases the risk of developing testicular cancer. When a baby's testicle stays in the abdomen or groin area instead of the scrotum, it is an undescended testicle.
  
  

Personal Experience

• Having a personal history with testicular cancer means he might be at a higher risk. Approximately 4 percent of men who have cancer in one testicle will develop it in the other at some point.
  
  

Age

• Testicular cancer can affect males at any age. It has been shown, though, that 90 percent of cases affect males from ages 20 to 54.
  
  

Race

• A person's race is a risk factor for testicular cancer. Caucasian males are five times more likely than blacks, and three times more likely than other ethnicities, to develop this cancer.
  
  

Medical History

• There is an increased risk of a man developing testicular cancer if family members had it in the past. Males with the HIV are at increased risk also.