Testicular pain is pain you feel in one or both of your testicles. Your testicles are the two soft, round structures inside your scrotum, the sac of skin underneath your penis. Testicles make sperm ...

Testicular cancer originates in the testicles. Metastatic testicular cancer is an advanced stage of the disease. It occurs when cancer cells in the original sites travel through the lymphatic system ...

A nonseminomatous germ cell tumor is a type of testicular cancer that forms in cells that produce sperm. The outlook for people with these types of tumors is positive, especially if diagnosed in the ...