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HealthInfo Canterbury

About your testicles & scrotum

Your testicles are two small egg-shaped glands that produce and store sperm.

The medical term for testicles is testes (testis when talking about only one). They also produce the hormone testosterone. They sit under your penis, in the sack of skin called the scrotum.

Sperm from each testicle is stored in a structure called the epididymis. The epididymis is at the top and back of each testicle. The epididymis is attached to your spermatic cord, which runs from your testicle, through your groin to your abdominal cavity.

In your spermatic cord is another tube called the vas deferens. Your vas deferens carries sperm to your prostate gland.

Your sperm mixes with fluid to produce semen which is ejaculated through your penis.

Written by HealthInfo clinical advisers. Endorsed by clinical director, Urology, Canterbury DHB. May 2016.

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Review key: HITSP-26704