The Anatomy of the Penis

What is a Penis?

Found solely in the male gender, the penis is an external sexual reproductive organ, particularly found in mammals. The organ also serves the additional purpose of urination within males.

What is an Erection?

An erection is typically the stiffening of the penis body as a result of blood entering penile cavities. As the arteries supplying blood to the penis increase the flow, three sponge-like tissues absorb blood causing it to become longer and hard. An erection facilitates intercourse as well as sexual activity. Depending on the strength of the ligament which suspends the penis, an erection may point upwards, downwards or horizontally.

Human Penis Size

The general rule with respects to male penis size is that it is usually proportional to the size of the body. Results typically vary across study, usually a result of participant bias. Studies have shown that the average penis size ranges between 5 to 5.5 inches erect.

Variations of Penis Size

While there have been studies on the size of the penis at erect length, there have been very few pertaining to flaccid size. This typically varies amongst men however the most recent study noted a flaccid length of approximately 3 inches.