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Research on the importance of penis size for men and women
July 17 2007
Is bigger always better? When most people hear that question they either immediately or eventually think about penis size,
and the more direct question that many men and women want to know, does penis size matter?

The reality is that sometimes penis size matters, and sometimes it doesn’t. There are those of us who have unique
personal tastes (affectionately known as size queens), but others prefer variety. Some folks might be happy driving a
Tercel one day and an SUV the next. Another key piece of information when talking about how much penis size matters, is
making sure we know we agree on what is an average penis size.

Rather than rely on old sayings, fashion magazines, and the hundreds of emails in your inbox every day, let’s look at what
research tells us about whether penis size matters?

Does penis size matter to women?

A survey of 556 women between the ages of 19-49 asked participants whether penis length and girth matter.

The findings included:

18% said penis length was very important, 22% said penis girth was very important

57% said penis length was somewhat important, 53% said penis girth was somewhat important

25% said penis length was unimportant, 25% said penis girth was unimportant

A major flaw of this study was that it did not specify an optimal size. So women who felt penis girth mattered may have
different ideas of what the ideal penis girth is. The assumption might be bigger is better, but this isn’t confirmed by this
study.

Another ingenious study, done by Canadians, had women read erotic passages and rate them on the steaminess of the
passage. The only thing they altered was the size of the penis. While some respondents did score the larger penises to be
hotter, the differences were not statistically significant. Indicating that in a fantasy realm at least, bigger may not
necessarily mean more arousing and penis size may not matter as much as other things.

While there have been other surveys that have asked women about the importance of penis length and girth, and most
report that where this is a preference, girth is reported as more important then length, there doesn’t seem to be any
academic research that actually addresses what size is preferable. If there were such research we could expect, of course,
there to be great variability in size preferences.

Does penis size matter to men?

There is no question that men have a preoccupation with penis size. Most men seem to think penis size matters, and many
worry about the size of their penis at some point in their lives. There have been several studies that have confirmed that
men’s perception of penis size is skewed:

An Internet-based survey of 52 031 heterosexual men and women found that while 85% of women were satisfied with their
partners’ penis size, but only 55% of the men were satisfied with their penis size.

Several studies that have asked men to evaluate the size of their penis, compare it to “normal” and then have actually
measured their penis size, have shown that most men underestimate the size of their penis, and overestimate what is
average penis size.

Studies have also shown that men tend to compare penises in a way that is likely to end up with negative evaluation (e.g.
they compare flaccid penis to an erect penis).

One study of men who were seeking penile enlargement surgery found that most of the men had penises that were in the
average size range, despite their belief that they had unusually small penises.

It seems from what research we have, that men think penis size matters more than women. Which begs the question, Why
do guys worry and talk about penis size so much?

One answer is that we’re still stuck in this penis-centered idea of sex, where great sex comes solely from a man doing
unbelievable things with his penis.

Let’s remember first, that lots of people are having great sex with no penis involved at all! And beyond that, most women
don’t orgasm from penetration at all, so most orgasms are not being produced from a penis of any size. I think we still
focus on penis size, because we still think that a dick is the measure of a man. And this is the worst misconception of all.

Sources:

Stulhofer, A. “How (Un)Important Is Penis Size for Women with Heterosexual Experience?” Archives of Sexual Behavior
Volume 35, No. 1, (2006).
Lee, P. “Survey Report: Concept of Penis Size” Journal of Sex & Marital Therapy Volume 22, No. 2 (1996):
Mondaini, N., Ponchietti, R., Gontero, P. et. al. “Penile Length is Normal in Most Men Seeking Penile Lengthening
Procedures” International Journal of Impotence Research Volume 14, No. 4 (2002):
Wylie, K.R. and Eardley, I. “Penis Size and the ‘Small Penis Syndrome’” BJU International Volume 99, No. 6
(2007):1449-1455.