A 43-year-old Panama man was the focus of a recent case report that detailed a rare condition that caused his testicles to swell to an enormous size. The man, who was not identified in the report ...

Testicles, also called testes or balls, are oval-shaped organs that sit in a sac that hangs behind the penis. The main job of testicles is to make sperm and produce testosterone. Testosterone is the ...

Not all swellings are fluid-related. A spermatocele is a benign cyst that forms in the epididymis and can feel like a lump ...

As with every other body part, testicle size varies from person to person, often with little or no effect on health. Measuring the size of your testes is usually done with an ultrasound. This painless ...

Testicular pain affects your testicles, the small reproductive organs inside your scrotum. Your scrotum is the pouch of skin behind your penis. Most men experience testicular pain at some point. It’s ...

You might not know it, but this month is testicular cancer awareness month, which seeks to try and raise awareness about the disease. The rest of this article is behind a paywall. Please sign in or ...

Researchers believe they have found which species has the largest testicles in relation to body weight on the planet -- and why. One of the researchers said, "We couldn't believe the size of these ...