The penis may be a man’s best friend, but there are still penis facts that many men may not know - or only think they know. Just as with human best friends, sometimes there is more to a guy’s favorite appendage than may be immediately obvious - and sometimes what’s secret could have an impact on penis health. So with that in mind, guys are encouraged to take the simple quiz to see how up to par they are with their penis facts.

1. True or False: The human penis has one large bone in it.

False. Despite the fact that erections are commonly called "boners," the human penis has no actual bones in it. Some non-human penises do have bones, however.

2. True or False: The penis retains the same degree of sensitivity throughout its lifetime.

False. Most men tend to lose some sensation in their penis as they age. In addition, many men lose some sensitivity due to trauma or to rough or aggressive handling during sex.

3. True or False: There’s a lot of penis that a person just can’t see.

True. When the penis is erect, only about half of the total organ is visible. The rest of the penis - the part referred to as the "root" of the penis - extends inside the body. (It’s similar to how the roots of a tree are underground and may stretch for a distance longer than the part of the tree that is above ground.)

4. What term refers to a man obtaining an erection after being hanged to death?

A. Disgusting

B. The Deathly Hardening

C. Angel Lust

D. Post-Passing Pleasure

While it’s possible any of the above could be considered correct, C is the official answer.

5. What is the term for an erection caused by sexual fantasies?

A. Disgusting

B. Psychogenic

C. Fantasty-ific

D. Va-Voomers

The correct answer is B, although many men have their own terms for these erections.

6. What is the average number of erections an adult male gets in one day?

A. One

B. Five

C. Eleven

D. Eighteen

The answer is C, eleven; however, some men may get more or fewer on a regular basis and still be perfectly healthy.

7. Which of the following is NOT a common penis skin issue?

A. Fordyce spots

B. Psoriasis

C. Contact dermatitis

D. Peripheral nerve damage

Peripheral nerve damage (D) does occur in the penis, but it is not considered a skin issue.

8. True or False: If a man has an erection lasting 90 minutes or more, he is suffering from priapism.

False. Most doctors define priapism as an unrelenting erection that lasts for four hours or more. However, if a man experiences a painful erection that won’t go down, he should consult a doctor, even if it has not been ongoing for four hours. (Long-term and unrelieved erections can cause serious damage to sensitive penile tissue.)

9. Worldwide, more men have intact foreskins rather than circumcised penises.

True. Somewhere around 2/3 of men the age of fifteen and up possess their foreskins.

It’s important to know basic penis facts. One of the most important is that attending to penis health is crucial; regularly using a top drawer penis health crème (health professionals recommend Man1 Man Oil, which is clinically proven mild and safe for skin) can aid in this quest. Those concerned with maintaining a proper degree of penis sensitivity should use a crème with acetyl L carnitine, which is neuroprotective and helps guard against the peripheral nerve damage from rough handling that diminishes penile sensation. It’s also advised to select a crème with potent moisturizing capabilities to attend to rashes and the itchiness that accompanies them. A crème with both a high-end emollient (such as Shea butter) and a natural hydrator (such as vitamin E) is well positioned to provide superior hydration to the penis skin.