Most people with a penis have two testicles in their scrotum — but some only have one. This is known as monorchism. Monorchism can be the result of several things. Some people are simply born with ...

There are different reasons why one testicle may appear bigger than the other. If one of your testicles is slightly bigger than the other, don’t panic, this is completely normal for most men and boys.

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 ...

Testicle sizes vary widely. Smaller testicles are not usually a problem. However, small testicles can sometimes indicate a health condition. As well as length, health professionals sometimes measure ...