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 ...

Doctors also refer to a swollen testicle as testicular enlargement. It occurs when the scrotum (the sac surrounding the testicles) grows abnormally large. Testicular swelling occurs when fluid starts ...

Finding any sort of lump "down there" may cause concern for most guys, but not all lumps are trouble. The Who Care's guys talk testicular lumps with urologist John Smith, MD. Learn about the different ...