Penis Size Chart

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Find a source

Could someone give me a source to a study showing that women who have only ever had one partner don't even think about penis size? I think its the fault of us men that women think about it. We encourage them to have multiple partners, not valuing their virginity, and then complain that our girlfriends and wives are comparing us to previous partners. Fact is, most women have their first orgasm at some point from a penis, "large" or "small", and are happy about it, and with the exceptio of micropenis, I'm sure any woman who can come can come with a below average-sized penis, and she can enjoy it her entire life, and not want anything else. Or, one of us men with a different penis can come along and try to do better, resulting in the whole issue of comparing penis sizes.--ChadThomson 07:41, 28 September 2005 (UTC)

Comments

23/4/5: I've added the witty riposte to the question 'how long is your cock?' published a few years ago. It belongs in Wikipedia somewhere, I think, but I'm not sure where. There's probably a better place ...


My edit was that the size of their partners, rather than theirs, might be of concern. I think that is fair, but may have been ambiguously worded. The Fellowship of the Troll 02:27, 14 Jan 2004 (UTC)

According to a class I'm taking in the Psychology department at the University of California, Santa Cruz, the issue of penis size is mostly relevant to the Western world. Editing the article accordingly; if you disagree, please cite research stating the contrary before doing so. (The text book we use is Our sexuality by Robert Crooks and Karla Baur.) Dpol 18:25, 26 Feb 2004 (UTC)

2 or 2.5 Standard deviations?

The micropenis article says a micropenis is 2.5 SD's or more less than average is known as a micropenis, whereas this node gives 2 SD's. Could someone with medical reference material or the appropriate know-how please make these articles consistent, or if there is no consensus, add that these are loosely defined terms? --fvw 00:42, 2004 Jun 13 (UTC)

It's like "short stature" for goodness' sake. I suspect 2 different people wrote the sentences in the two articles originally. Of course it's arbitrary! If you really want to know the real, actual, honest-to-God major purpose of the diagnosis "micropenis" it's so your insurance company will pay for the doctor consultation-- if we wrote "normal variation," you'd have to pay the bill yourself. (No offense intended of course... I just finished answering your quibble at talk:micropenis). If you want to check a penis growth curve, you can find one in Jones' Smith's Recognizable Patterns of Human Malformation published by Saunders. Alteripse 01:45, 13 Jun 2004 (UTC)

It makes sense that it's a fuzzily defined term, I just wonder if we should be giving exact numbers (without any indications of fuzziness like 'about' or 'approximately'), and inconsistent ones at that in that case. Have you got any preference for stating 2 or 2.5? I suggest we update both articles to give the same number using the word 'approximately'. --fvw 23:26, 2004 Jun 13 (UTC)

OK, you asked nicely and I'm feeling guilty for my sarcasm. Here are some specifics:

  1. Grumbach MM, Styne DM. Puberty: ontogeny, neuroendocrinology, physiology, and disorders. Chapter 24 of Larsen et al. Williams' Textbook of Endocrinology , 10th ed. Philadelphia: Saunders, 2003. "The phallus is most accurately measured stretched while in the flaccid state as there is much variation between individuals in the length of the unstretched penis. The length of the erectile tissue (excluding the foreskin) increases from an average of 6.2 cm in the prepubertal to 12.4 +/-2.7cm in the white adult. Ethnic differences have been noted; the mean value in black men is 14.6 cm and in Asians 10.6 cm." (The reference for the last (politically incorrect) statement is Sutherland et al. The effect of prepubertal androgen exposure on adult penile length. J Urol 1996; 156:783-7.) However, there is some ambiguity in the paragraph: whether the "+/- 2.4 cm" is +/- 1 S.D. isn't made clear, nor whether both sentences are derived from the Sutherland reference or just the last. I think both, but I don't have the paper. Anyone with access to a medical library want to look it up?
  2. Schonfeld WA. Am J Dis Child 1943;65:135, cited in appendix of Jones, ed. Smith's Recognizable Patterns of Human Malformation Philadelphia: Saunders. At age 16, median, 10th, and 90th percentiles are given as 11.5, 8.9, and 15.0 cm, but the shape of the curve suggests a bit more growth may be remaining in the majority before maximal adult size is reached.
  3. Penney R. Disorders of the testes. Chapter 10 of Kaplan S. Clinical Pediatric and Adolescent Endocrinology. Philadelphia: Saunders, 1982. He provides a table that gives adult stretched penile length, mean +/- 1 S.D., as 13.3 +/- 1.6 cm, with 9.3 cm as -2.5 S.D. and for this table cites Lee PA, et al. Micropenis. I. Criteria, etiologies, and classification. Johns Hopkins Med J 1980; 146:156.

It took me about 60 min to dig out and type these references, and I could probably find some more but they give you the flavor of what's out there. There is so much imprecision at the statistical edges that it doesn't have any practical difference to me (and I mean "practical" in the literal sense of daily "practice") whether we use -2 or -2.5 S.D. or whose paper you want to cite to the 0.1 cm. The real clinical problems lie well south of those criteria or have other evidence of trouble; the people at 3rd or 5th or 10th percentile are simply the "healthy but dissatisfied" to me and it's not always easy to help them see it that way in a constructive way. I hate encouraging people to turn human differences into diseases. Perhaps that will mitigate my dismissal of your questions last night, or at least help you understand. Please feel free to reconcile the articles. Alteripse 00:38, 14 Jun 2004 (UTC)

That was very informative (once again I vote we change "Wikipedia, the free encyclopedia" to "Wikipedia, more than you ever wanted to know"). I've made the articles consistent, thanks for the good work. --fvw 02:01, 2004 Jun 14 (UTC)

Well, the article defines micropenises in terms of standard deviations of penis length, but doesn't tell us what those standard deviations are! Also note that the above references talk about stretched flaccid penises, not about erect penises like our article does. AxelBoldt 10:21, 31 Jul 2004 (UTC)

  • I don't understand either of your points. The SDs are defined in each paragraph above: different for each study, but roughly 2 cm. Or am I missing your point? And I am missing your point about measuring flaccid vs erect. Could you spell it out?Alteripse 11:15, 31 Jul 2004 (UTC)

Axel, I was trying to figure out where you were coming from with those questions. I didn't write the "main article" but I provided the paragraphs and references above because the user above asked for them. Card carrying pediatric endocrinologists don't think any "average" body measurement is worth diddly if the range of normal for the population isn't specified by percentile or by SD. So I supplied the SDs for the data above. Feel free to substitute these data sets into the main article if you too like data with SDs better.

As for the flaccid vs erect measurement, you are being way too serious here. Think for a moment how the data was collected, who did it, how one would obtain data on enough erect penises to be statistically significant, why someone who did have access to a thousand erect penises would know or care what statistical significance is (imagine Francis Galton as a transsexual prostitute?), what ascertainment biases you would get if you tried, and what some of our congressmen would say if you applied for a federal grant to do it. If you have know of a better data set, this is wikipedia, so you are welcome to supply it.

My personal opinion, after having more try-to-be-therapeutic conversations about this than I ever wanted to, is that people come in all shapes and sizes. Someone who is convinced he has the equipment for the job really does have it, and someone who is convinced he doesn't really doesn't (though he is likely mistaken where his defect is located). It's really hard for a doctor to change the guy's conviction either way, and this article is way too long already.

Finally, don't you think this article reads like a transcript of a really earnest attempt by your average well-intentioned residence hall advisor to carry out a mandate from some dean who decided that all the freshmen need a "human sexuality" course because the administration couldn't trust him with a real task? Alteripse 22:52, 31 Jul 2004 (UTC)

Thousands of erect penises. Wow. I'm getting a stiffy just thinking about it.

Gaussian distribution removed

I removed If penis length followed a Gaussian distribution, about 0.6% of penises will be in the micropenis category . If there is evidence that the _causes_ of micropenis follow a Gaussian distribution, it's fine. Otherwise, its like using a study of those without a cold to estimate the incidence of colds: misleading. Jamesday 11:08, 2 Sep 2004 (UTC)

I'm not sure your statistical assertion is correct and I'm sure your comparison with colds is incorrect. According to a normal distribution is usually a reasonably good model for sizes of body parts. The reason the cold distribution is irrelevant is because it discontinuously varies-- there is a tiny percentage of

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