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 ...

A spermatocele is a fluid-filled sac or cyst. It develops on the epididymis, the small tube that stores and transports semen from the testicles. It may feel like a hard, painless lump or there may be ...

Testicular torsion is a medical emergency when a testicle twists around the spermatic cord, cutting off the blood supply. While it can occur without pain, most people experience severe pain in the ...

Like other cancers, testicular cancer is classified by stages. Each stage tells you whether the cancer has spread and if other organs are affected. These stages are used to make decisions about ...