Talk:Nipple

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2003[edit]

Even[edit]

"All mammals have an even number of nipples, through which females lactate;" Why have we lost this? -Unsigned

Fixed. - Patrick 17:10 20 Jun 2003 (UTC)
A few mammals don't have nipples; zero is an even number.KJ Sam 07:12 22 Jun 2003 (UTC)
INAPPROPRIATE! Yash kk 09:16, 9 September 2007 (UTC)
I was under the impression that having nipples was part of the definition of mammal! Which mammals don't have nipples? Also; some mammals have an odd number of nipples but as far as I'm aware this is a freak occurance and no species generally have an odd number. -Unsigned
A number of marsupials don't have nipples. jk 00:36, 9 Feb 2005 (UTC)
Marsupials are not mammals, they are marsupials. boffy_b 23:23, 2005 Mar 22 (UTC)
"Marsupials are mammals" says the first three words of marsupial. -- John Fader (talk | contribs) 23:29, 22 Mar 2005 (UTC)
Well it's all lies and a conspiracy. You'l see. boffy_b 23:52, 2005 Mar 22 (UTC)
Jeremy, I can't find mention of that at marsupial or here. If you have a cite it would make an interesting factiod for both articles. -- John Fader (talk | contribs) 00:09, 23 Mar 2005 (UTC)
"I would have assumed that nipples were only available in even numbers had I not learned that female possums, for example, have between seven and 25 nipples. The delightful Virginia opossum, which inhabits the middles of American roads and highways, usually has 13, efficiently arranged in an open circle with one in the center. This information should not tempt you to snicker and point the next time you see a possum: They also have 50 teeth." from Why Do Men Have Nipples by Susan McCarthy 67.129.136.163 14:52, 25 January 2006 (UTC)
A sectional drawing would be more informative here than a photograph of a nipple, to show, for example, the functional relation of the nipple to surrounding tissues. Also, should there be images of other types of nipples (baby bottle, industrial, cattle, etc.)? Tom Haws 07:05, Feb 3, 2005 (UTC)
Seems appropriate to me. Have any? TIMBO (T A L K) 20:56, 8 Feb 2005 (UTC)
Here's a hint: If the anons are removing the nipple profile continually [drum roll] it might not be a very good image, and the article might be better off empty until something better is found. Sometimes listening to repeated anons is the wisest course. If we are honest with ourselves, we have to admit we can do better. Tom Haws 23:36, Feb 23, 2005 (UTC)
Marsupials are a sub type of mammals and they do have nipples inside the pouch.
Marsupials are the group of mammals commonly thought of as pouched mammals. They give live birth, but they do not have long gestation times like placental mammals. Instead, they give birth very early and the young animal, essentially a helpless embryo, climbs from the mother's birth canal to the nipples. There it grabs on with its mouth and continues to develop, often for weeks or months depending on the species. The short gestation time is due to having a yolk-type placenta in the mother marsupial. Placental mammals nourish the developing embryo using the mother's blood supply, allowing longer gestation times. [1] zen master T 23:27, 22 Mar 2005 (UTC)
It seems to me that a disambiguation page would make sense here. Monotremes such as Platypus dont have nipples they secrete milk through glands into their fur., Monotremes the the most primitive existing mammals. Marsupials (generally, all have a birth pouch) are a later mammalian grouping, and have nipples inside their pouches --timc | Talk 01:37, 15 Jun 2005 (UTC)
Still, I agree. Zero is an even number. 67.232.193.190 (talk) 02:31, 29 December 2008 (UTC)

Perhaps this could all be cleared up if we simply said "placental mammals" and "marsupials". The comments about marsupials having a short gestation period is also inaccurate. Kangaroos suspend gestation during dry periods. The moment the conditions are right, they give birth and fall pregnant again. Kangaroo Does, can have a "Joey" following them, one in the pouch and be pregnant. One in, one out and one pending.Euc (talk) 07:56, 26 May 2010 (UTC)

2005[edit]

Alternate definitions[edit]

In plumbing, a nipple is a short piece of threaded tubing used as a coupling. -Unsigned

For bicycles, a nipple is a nut placed at the end of each wheel spoke. -Unsigned
But it appeared as a very racist remark (in any case, nothing to do with nipples). I hope it is ok by now. Francesco
What exactly do plumbing and bicycles have to do with racism?207.157.121.50 07:48, 13 October 2005 (UTC)mightyafrowhitey
What on earth do you mean? What rascist remark? Liamoliver 20:05, 20 June 2007 (UTC)

Supernumerary stats[edit]

"One in 18 people has a third nipple" Is this notable to be written here? :-) (BBC) bogdan | Talk 10:46, 3 September 2005 (UTC)

Perhaps that belongs at supernumerary nipple. -- Sundar \talk \contribs 10:52, September 3, 2005 (UTC)

Cripple[edit]

User:24.215.89.228's edit about "nipple cripple" nipple twisting as an school yard torture is interesting, but does not seem to fit in with the formal tone of this article. I am moving it to List of school pranks where there is a section on nipple cripple/purple nurple, and add a link to there from here. -Unsigned

Males[edit]

Why do human males have nipples? Its in most mammals but in our evolution it is present. Male dogs have nipples as well. -Unsigned

Check a little closer next time you pet the belly of a male dog :) Anyway, as I understand, the answer is part of evolution. Given the genetic simliarities between males and females (believe it or not), it was not possible for female mammals to develop nipples without a corresponding development in males. Sure other male and female genitals are highly differentiated, but there is a much longer evolutionary history separating those. But genetic differences between the sexes are not different enough for nipples to be able to only appear in the females of the species. Males nipples are a necessary side effect of the development of functional nipples in females. -Unsigned
But don't let people tell you that males don't have an organ whose sole use is for pleasure. -Unsigned
Thats a real good answer, I still believe humans will continue to evolve, even if it's minimal changes. Some suggest larger more complex brains, no hair and other things.--King of the Dancehall 02:29, 16 December 2005 (UTC)
Male horses and male rats do not have nipples. 67.129.136.163 14:52, 25 January 2006 (UTC)
I don't believe it to be a question of evolution, but of biological efficiency. Females require the hormones to develop breast tissue. Biologically encoding separate physiological characteristics into genetic structure would be inefficient. Blue Leopard 10:33, 29 March 2006 (UTC)
Males being deviod of nipples wouldn't really give them a biological advantage, and so they were never lost along the evolutionary path. The reason is that all fetuses begin as females, and therefore the nipples (like everything else) develop like the breasts. For reasons of distinction, I don't like to say that males have breasts, I like to say that they have breast tissue and mammary glands. Everything a guy has is because he was a female first. The penis is an enlarged clitoris, the testicles are descended ovaries, and the nipples are because he was a female as a fetus before the formal change to male happened.
The idea that "all fetuses begin as females" is a feminist philosophical argument, not a biological fact. I could just easily say that all fetuses start male, because it is only natural in humans for testicles to descend and a penis to develop, and therefore anyone who is female only became that after first being male when later testicles failed to drop and become ovaries, and a uterus, vagina, and clitoris developed. To simplify: to state that everyone begins as "female" first and later becomes a "male" is a meaningless statement and without any truth value. It all depends on your point of view. I could declare that all humans must come from sperm, and sperm is always male (as it was part of the male body), therefore everyone starts off male. But that would be a meaningless philosophical statement without truth value.
Feminist arguement? It is hardly as simply as that. Your example is indeed a meaningless statement, although it can hardly be described as philosophical. On the contrary, it falls apart instantly. How on earth could the fact that sperm are from men suggest that all children start male? It is hardly comparable with the arguement that you are attempting (poorly I might add) to disprove. I would have thought it obvious that all children start off female; it would certainly explain the horrendous impracticalities that the male body has: external genitalia and the Adam's apple to name two of them. What on earth could be the cause of male nipples if this wasn't the case?

By the way, I am a man. Liamoliver 20:20, 20 June 2007 (UTC)

Well, that's the answer given in "Why do males have nipples?", the book written by two MALE doctors. There is medical justification in the book. Though sperm comes from a male's body, it can actually have and X or a Y, which is the determinant of gender, so I wouldn't go so far as to say that sperm IS male. Besides if we go along with your argument, a fetus is just as much from a male's body (sperm) as a female's body (egg) AND it is grown in an environment surrounded by female hormones for 9 months. Which is more likely to influence the fetus? The sperm or the environment as a whole? Walkerb4 04:07, 14 June 2007 (UTC)
Dr. Johnathan Sarfati states, "Human embryos contain characteristics of both sexes at first, because they all have basically the same genetic information, and this information is expressed as efficiently as possible as the embryo develops. This is design economy. For example, in all human embryos, at first both the müllerian duct system (female) and the wolffian duct system (male) develop, because both sexes have the genetic information for these structures. Incidentally, this refutes the urban myth that human embryos ‘start off female’. The subsequent differences are the result of designed chemical signals that control the expression of the information. E.g., a gene set usually found on the Y chromosome controls the levels of testosterone and dihydroxytestosterone (DHT) secretion. Above a certain level, these hormones suppress the development of the müllerian duct system and promote the wolffian duct system, so the embryo takes on masculine characteristics. Below a certain hormone level, the opposite happens, and the embryo takes on female characteristics." Also, the clitoris serves NO purpose for the female other than sexual pleasure, so it could also be argued that the clitoris is just an underdeveloped penis, considering the penis' purpose in the male. Another question could be, "Why do females have a clitoris?" -Unsigned
"Starting at conception and lasting until about 14 weeks, all human fetuses look the same, regardless of sex. After 14 weeks, genetically-male fetuses begin producing male hormones such as testosterone. As "female" is the "developmental default" for human beings, by 14 weeks, the nipples have already formed." Could "human fetuses" and "human beings" be changed to "mammalian fetuses" and "mammals"? Or if not all mammals have nipples, then at least say some mammals to include others besides humans (I'm not really sure whether other mammals actually do look the same which is why I'm asking). I'm going to go ahead and change this, after reading the post here about male nipples. Lord mortekai 02:08, 9 April 2007 (UTC)

Pictures[edit]

This page needs a picture of a male nipple for comparison. As it is, I think the different photos for an erect vs. unerect female nipple are kind of silly. We should just show the nipples of both sexes in their natural, unaffected states.

Agreed - for there to be four pictures, all of female nipples, seems a bit redundant. I don't think there needs to be any more than one - or two, if demonstration of erection is necessary - plus one of a male nipple. A picture of non-human nipples might be useful for comparison, too. -Unsigned
I have no particular objection to this, but aren't there more pictures of nipples here than are really necessary? What's more, all of them seem to belong to white human females. Garik 14:47, 29 April 2006 (BST)
I think it's informative to demonstrate erect/unerect nipples, but if possible they should be on the same person (the difference in areola size in the current pictures is more noticeable than their state). First commenter above: erect nipples are no less natural than unerect nipples. Re male nipple pictures, that's what I came to the talk page to suggest. Can we source (or take) an image? [Note: I moved the section heading 'A lot of pictures' up two comments to keep the discussion together] Njál 21:53, 29 April 2006 (UTC)
I have changed the images around a bit to better show a large range of nipples. If anyone thinks there needs to be any more changes to the images in this article then please discuss here first.--Clawed 22:59, 1 May 2006 (UTC)
I changed them around a litte - tell me if you hate it. For great justice. 17:24, 9 May 2006 (UTC)

I must say that I feel this is a far superior image to either of the examples of female nipples already on this page. I'm interested in what the rest of you think. Kasreyn 04:25, 4 June 2006 (UTC)

I just did a preview, replacing the 2 existing images with the one above, and it looks a lot less cluttered (the existing images are taller). The suggested image is much more interesting and detailed, as well as being slightly better looking.   — Lee J Haywood 11:17, 4 June 2006 (UTC)
I'm female and would like to see the difference between normal erect and relaxed nipples. I'm tired of seeing people oppose and remove real images because they're offended. It's just a boob! I don't care if someone masturbates to these pictures, but for example, I never knew where the urethra was until I saw a picture. Yes, I'm 23 and only last year I found out where my piss hole really is. My boyfriend laughed his ass off! Anyway, it's 2008, I need boob pics and don't feel like googleing it because I already have enough porn on this thing as it is. And looking at my own boobs isn't going to solve it. How do I know if my own boobs are normal. 22:36, 16 February 2008 (UTC) Puss in Boots —Preceding unsigned comment added by 63.201.26.232 (talk)

Boobies[edit]

Well, just to be fair, shouldn't there be a picture of a BIG fat dude with pendulous man-breasts so as to show what a male nipple looks like on a hombre whose breasts are likely larger than a sizable percentage of the female population? -Unsigned

Because it's disgusting. The article also already shows a picture of a 13yo boy and THATS PEDOPHILIA ON WIKIPEDIA! Cuzandor 20:34, 5 August 2006 (UTC)
User:Omicronpersei8, Why don't you object to the tits and utters and 13 year old pedophilia; yet you revert me? Come on Omicronpersei8, have some MANBOOBS! This second one isn't even gross. How do you know the author could/think something will be "gross"? Do you have a crystal ball? [manboobs for all] 66.114.93.6 04:44, 6 August 2006 (UTC)

Apes[edit]

Instead of having TWO pictures of humans, I think we should replace the one of the human torso (which comes from someone which seriously lack muscular mass and is not a real reprentation of a male human) to this one or anything similar. -Unsigned

Agree--Light current 22:50, 18 September 2006 (UTC)

2007[edit]

Regeneration[edit]

Does the nipple regenerate? I saw, on a different unrelated article that the nipple is the only part of the human body that regrows if it is lost, how come it doesnt say it here? —The preceding unsigned comment was added by 12.166.104.26 (talk) 10:29, 2 March 2007 (UTC).

I've seen this too. If anyone else agrees, this should be added.—The preceding unsigned comment was added by 70.161.57.72 (talkcontribs) 06:20, 14 April 2007 (UTC)
Please be careful. This is why people at Wikipedia ask for references to reliable sources. Just because a number of people may have heard of something, doesn't mean it is true. See A Tale about a Tiger (a less readable but more informative discussion is Argumentum ad populum, also WP:VERIFY, WP:RS)
I looked around a bit, but the only mentions of the topic easily available were in reference to breast reduction and reconstruction, and I didn't want to dig any deeper into that. Especially as it seemed they weren't claiming _complete_ successes. Shenme 19:44, 15 April 2007 (UTC)

Number statement[edit]

The nipple number statement is confusing and misleading: "Other mammals such as cats and dogs develop more nipples along the milk lines, in number generally approximating the average litter size for that species, rounded up to an even number." Should be something like "Most mammals develop multiple nipples along each milk line, with the total number approximating the maximum litter size, and half the total number (i.e. the number on one side) approximating the average litter size for that species."

Here's one reference, but perhaps somebody can find a better one: "Mean litter size is typically one-half the number of available mammaries, while maximum litter size approximates mammary number." From Mammary Number and Litter Size in Rodentia: The 'One-Half Rule', Communicated by Leo M. Hurvich, March 7, 1986. Nick Westgate 04:12, 5 June 2007 (UTC)

Male picture[edit]

Is there a reason that the human male torso picture is of a man with an unusually large musculature? Shouldn't it be something rather more normal and less inclusive? (The torso could be shown in the torso article. JPBarrass (talk) 08:37, 27 November 2007 (UTC)

I agree, the image seems to boast his physical condition rather than an example of what a nipple looks like. Compared to the image of the female nipple we could do better. A closer image should probably be used. No, I'm not taking a picture of mine. :) vıdıoman (talkcontribs) 08:40, 27 November 2007 (UTC)
Complete Agreement: The focus is clearly on the torso and not either of the nipples. I agree that a focused picture on the male nipple would be more appropriate. --LeyteWolfer (talk) 16:38, 27 November 2007 (UTC)

Male stimulation[edit]

"Male nipple play (stimulation) - highly pleasurable sexual feeling" A recent study indicates that many men enjoy having their nipples stimulated. Dr. Roy Levin of University of Sheffield in the United Kingdom and Dr. Cindy Meston of the University of Texas at Austin surveyed approximately 300 sexually experienced undergraduate students. The results strongly indicate that men enjoy nipple stimulation as much as women. Source: Nipple Stimulation Arousing for Men, Too. Yahoo Health - Johns Hopkins University -Unsigned

Well I don't know about other guys on here, but I can testify that having your nipples stimulated is very pleasurable. 221.191.14.118 (talk) 14:50, 16 February 2008 (UTC)

2008[edit]

Puffy[edit]

Someone should add a picture of a puffy nipple. I like those. -Unsigned

I am interested as to what they are? I saw on someone's talk-forum from 2007 that the puffy nipple article got deleted, and the admin told him to add it to here or areola. Can someone give me a one-sentence answer as to what puffy nipples are caused by? Or what they are? Thanks 198.70.210.77 (talk) 14:21, 1 April 2008 (UTC)

2009[edit]

Hair[edit]

I think there needs to be a mention of nipple hair - the hair strands, usually few in number that grow on the outer part of the nipple. It happens in males anyway.--86.41.162.151 (talk) 13:37, 7 May 2009 (UTC)

Ethnic differences[edit]

I started a new section with a single sentence, hopefully someone will find the time to help expand it. I read about this a few years back and was reminded of it when I saw this article today. A quick Google / PubMed search will give the references. —Preceding unsigned comment added by 94.193.37.159 (talk) 11:41, 20 August 2009 (UTC)

Picture[edit]

Why must there be a woman's nipple? I mean I'm a dude and I'm offended by it! I'm all for talking about nipples but don't show that area of a woman! Just can't we get a dude one!

Just leave the pics of womens nipples on but maybe have a man's nipple as well. How can you be offended by a woman's nipple??--Scorpio95 (talk) 22:34, 27 September 2009 (UTC)

Well, I'm offended beacuse it's kind of like their personal area, and I find that it should be respected and not posted on the internet for the world to see. Especially not on a sight so official like this.

See WP:NOTCENSORED. JasonHockeyGuy (talk) 06:03, 11 November 2009 (UTC)

Sorry[edit]

I had reverted an edit I thought on here was vandalism and was scrambling to change it back so a bot dont nail me :P JasonHockeyGuy (talk) 06:01, 11 November 2009 (UTC)

2010[edit]

Male representation[edit]

The article currently lacks a picture of male nipples. It appears to focus more on female nipples. The article should provide both male and female perspectives. -NerdyScienceDude :) (✉ click to talkmy edits) 01:28, 6 February 2010 (UTC)

Merge[edit]

Any objections to merging Teat to here? They're the same topic. Powers T 21:18, 27 July 2010 (UTC)

  • I guess not. It is done. Powers T 12:56, 6 August 2010 (UTC)

Picture of the male chest[edit]

Is it really necessary to show a cropped picture of a man in a gay pride parade? Doesn't seem very encyclopedic to me. 67.214.24.45 (talk) 07:23, 1 December 2010 (UTC)

2012[edit]

Why hasn't evolution selected for male nipples to develop in the same way as female nipples so that both sexes would be capable of suckling infants?[edit]

Gould's and Lewontin’s argument that we should not immediately assume that every trait has an adaptive explanation, as well as other accounts of why males have nipples, e.g. chromatic male/female difference, all prompt a further question: why hasn't evolution selected for mail nipples to develop sufficiently to suckle young? Production of milk is triggered by pregnancy and birth, but, for example, women have been known to lactate at the sound of a baby crying. This seems an imaginable mechanism for the onset of lactation in males, had evolution bestowed functioning nipples on them. One can imagine alternative mechanisms, such as lactation by fathers being caused to begin at the onset of maternal lactation in a mate. Lactation in females is linked to pregnancy and birth, but is also distinct from that, typically commencing at the point that reproduction is completed. What evolutionary disadvantage could there be in both sexes being able to suckle their infants? — Preceding unsigned comment added by Kbmagill (talkcontribs) 16:24, 29 July 2012 (UTC)

Wikipedia does not accept original research. If you can find a reliable source supporting your assertion, then feel free to add the info. David1217 What I've done 03:54, 31 July 2012 (UTC)Kbmagill (talk) 12:58, 29 August 2012 (UTC)

Edit request on 7 October 2012[edit]

The hair the grows in your armpit. "I've got a lot of nipple growing in my armpit. " 174.252.215.103 (talk) 01:42, 7 October 2012 (UTC)

Not done: vandalism? David1217 What I've done 01:44, 7 October 2012 (UTC)

POV of last paragraph of last section[edit]

The last paragraph of the section "In male mammals" is written in first-person POV, which afaik is against Wikipedia's guidelines. 103.1.71.138 (talk) 03:05, 10 October 2014 (UTC)