The testicles, or testes, are important for the production and storage of sperm until they’re mature enough for ejaculation. They also produce testosterone, which is responsible for sex drive, ...

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 ...

When a scrotum is empty this indicates an undescended testis. This occurs when a testis never moved down in to the scrotum as the male developed, or moves back up out of the scrotum and into the ...

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 ...