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.

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 ...

Possible causes of one testicle being bigger than the other include epididymitis, epididymal cysts, a hydrocele, testicular torsion, and more. Treatment depends on the cause. Self-exams can help ...

The average testicle size is around 4 x 3 x 2 centimeters (cm). However, testicle size can vary. A person may also have one testicle smaller than the other. The testicles are oval-shaped male ...