The sexual organs inside a man’s body (internal sexual organs) are:

The man also has pelvic floor muscles in the bottom of his belly. They are not sexual organs but are important to a man’s sexual wellbeing and sexual pleasure

Man standing. The focus is on the internal sexual organs.
Man’s internal sexual organs are: 1. testicles, 2. epididymides, 3. sperm ducts, 4. prostate, 5. seminal vesicles.


The man has 2 testicles: one of the testicles can be smaller than the other one and hang a bit lower.

The testicles sit in the scrotum.
They produce millions of sperm cells


The man has 2 epididymides.
Each one is connected to one testicle.

In the epididymides the sperm cells are collected and grow.

Sperm ducts

The man has 2 sperm ducts.
Each one is connected to one epididymis.

They transport the sperm cells to the prostate.


The prostate lies below the bladder. It is the size of a strawberry.

Fluid is added to the sperm cells in the prostate. 

Seminal vesicles

The man has 2 seminal vesicles. They lie next to the prostate.

They add more fluid to the sperm cells. Together the seminal fluid and the sperm cells make up the semen.

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