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A Simple Guide to Male Reproductive Anatomy

A Simple Guide to Male Reproductive Anatomy

Think of this as a tiny anatomy lesson for a dude’s junk. Why? Because knowledge is good, understanding basic biology is important, and you never know who you’re going to impress by identifying where the frenulum is.

  • Penis. The male external sex organ responsible for delivering sperm. The largest one on record was 13.5 inches long and 6.25 inches in circumference. (We cannot read that without saying “ouch.”) That reminds us: A man of this girth might actually be too big for a comfortable male condom fit, but a female condom would be an option.
  • Glans. The very sensitive bulbous tip of the penis. In non-circumcised men, the foreskin mostly covers it. Slang terms: Knob. Helmut.
  • Urethra. A tube that runs through the penis to release urine and semen. Men and women both have urethras. In women it’s just a couple inches long. In men, it’s about eight inches long.
  • Frenulum. Where the foreskin attaches to the underside of the penis just below the glans. You can usually see where some of the frenulum remains even after circumcision. FYI: This spot is also known for being intensely sensitive.
  • Scrotum. The sack that contains the testicles, which are two ball-like glands that make sperm and hormones. Did you know that the larger a man’s testicles, the more sperm he’ll produce? Yep. It’s true.

One last thing: Should you come in contact with any of the body parts on this list—in a way that could lead to a pregnancy scare—may we suggest a super reliable form of birth control.


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Read more: Health, Sexual Health, , ,

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Everyone should have the life they want, when they want it. And until someone is ready to have a baby, we believe they should have access to birth control. That’s where we come in. Bedsider makes birth control easier. How? By giving you everything you need to find it, get it, and use it well.


+ add your own
12:40AM PDT on Sep 24, 2014

Thank you!

4:53PM PDT on Sep 23, 2014


6:56PM PDT on Sep 18, 2014

Like the cigarette advertisement of yore said, "It's not how long you make it, it's how you make it long".

11:42AM PDT on Sep 16, 2014

Not a very good article. Actually, tthe size of the testicles is inversely associated with fertility. Among healthy men with testicular size within the normal range, those with smaller testicles are more fertile.

Also, what about the prostate and the seminal vesicles? THey contribute to the ejaculate? And not mentioning the brain is really a great mistake.

8:10PM PDT on Sep 15, 2014

Great comments. Thanks for sharing...

4:28AM PDT on Sep 12, 2014

Thank you :)

7:25PM PDT on Sep 6, 2014


6:53PM PDT on Sep 6, 2014

I knew all the names except the Glans, I'm a female so I think that's pretty good!

8:21PM PDT on Sep 5, 2014

Alrighty then. . .

1:54AM PDT on Sep 5, 2014


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Disclaimer: The views expressed above are solely those of the author and may not reflect those of
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