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 ...

Testicles can rupture due to blunt trauma or other health conditions, including an infection. Any injury that penetrates the scrotum requires emergency medical care. Share on Pinterest FG Trade/Getty ...

A lymphoma can first develop in the testes, which doctors call primary testicular lymphoma. It may also start in another organ and spread or metastasize to the testes and other parts of the body.