Cancer Testis

Testicular cancer is a growth of cells that starts in the testicles. The testicles, which are also called testes, are in the scrotum. The scrotum is a loose bag of skin underneath the penis. The testicles make sperm and the hormone testosterone.

Testicular cancer isn't a common type of cancer. It can happen at any age, but it happens most often between the ages of 15 and 45.

The first sign of testicular cancer often is a bump or lump on a testicle. The cancer cells can grow quickly. They often spread outside the testicle to other parts of the body.

Testicular cancer is highly treatable, even when it spreads to other parts of the body. Treatments depend on the type of testicular cancer that you have and how far it has spread. Common treatments include surgery and chemotherapy.