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Why Do Men Have Nipples?

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If both men and women have nipples, why don't men also produce milk and breastfeed? It's a question that's been on all our minds, leading Laci to once and for all explain the reason for male nipples. Read More: Why Do Men Have Nipples? http://www.livescience.com/32467-why-do-men-have-nipples.html "Brace yourselves for a low blow, tough guy. Nipples remind us that gender is anything but clear-cut, especially in utero." Strange but True: Males Can Lactate http://www.scientificamerican.com/article.cfm?id=strange-but-true-males-can-lactate "Unless you are an Indonesian fruit bat, though, it probably won't happen naturally." Sex Begins in the Womb http://www.nap.edu/html/biological_contributions/ch3.pdf Sex differences of importance to health and human disease occur throughout the life span, although the specific expression of these differences varies at different stages of life." Fetal development http://www.nlm.nih.gov/medlineplus/ency/article/002398.htm "This article discusses how a human baby is conceived and how the baby develops inside the mother's womb." Embryonic period http://www.embryology.ch/anglais/jfetalperiod/entwicklung01.html "The embryonic time comprises 56 days, i.e., 8 weeks from the moment of fertilization." Why do men have nipples? http://science.howstuffworks.com/life/human-biology/why-men-have-nipples1.htm "The possibility of male lactation may not seem as far-fetched as one might at first expect, since it can happen soon after a baby boy exits the womb." Seven nipples in a male: World's second case report http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3656534/ "We present a case of seven nipples in a 32-year-old male patient." Watch More: Breast Milk Is Magic!: http://www.youtube.com/watch?v=4GPmPik8z1o Humans With Tails: http://www.youtube.com/watch?v=XfwMjTcaz64 Edward Jenner vs. Small Pox: http://www.youtube.com/watch?v=bKwobvzrMIY&feature=c4-overview ____________________ DNews is dedicated to satisfying your curiosity and to bringing you mind-bending stories & perspectives you won't find anywhere else! New videos twice daily. Watch More DNews on TestTube http://testtube.com/dnews Subscribe now! http://www.youtube.com/subscription_center?add_user=dnewschannel DNews on Twitter http://twitter.com/dnews Anthony Carboni on Twitter http://twitter.com/acarboni Laci Green on Twitter http://twitter.com/gogreen18 Trace Dominguez on Twitter http://twitter.com/trace501 DNews on Facebook http://facebook.com/dnews DNews on Google+ http://gplus.to/dnews Discovery News http://discoverynews.com
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Text Comments (1107)
Randyz Detona (9 days ago)
Danm she is right i have a extra MF nipple. O man i can feed 3 babies n one woman at a time.
A D (2 months ago)
I have nipples And I have big book boods
T K (5 months ago)
My girl friend suck my nipples is that normal
AzeriBeasT /// (6 months ago)
All humans begin life in the womb as females. If no Y chromosome is present in the foetus, then the embryo will continue to develop as and be born as a female. If there is a Y chromosome present in the embryo, the male sex hormone testosterone restricts the full development of breasts to just nipples, the labia fuse to become the scrotum and clitoris develops fully to become a penis. If the Y chromosome prevails in producing a male, this is not done without a fight. Male babies are weaker as a result than female ones, occounting for the slightly higher death rate in male babies.
Motazz Al-Arfaj (8 months ago)
2:15 Scientists and doctors actually know why galactorrhea sometimes happen in infants. It is actually because of excessive maternal estrogen hormone in their circulation, it will resolve by it's own once the estrogen level naturally go down within a few days.
Jung Nasty Man (10 months ago)
Her mouth is perfectly designed to catch cum.😍
insta musiclover69 (10 months ago)
I almost thought the title read why do men have hairy nipples?
RahulTheTechGuy (1 year ago)
there are four genders five genders or even 100....are you that stupid girl😂😂
Prashant vidhu (1 year ago)
Do a video please with yourself as model on subjects related to women breasts etc
Immortan Joe (1 year ago)
The instant I saw Laci Green. I knew this video was going to suck ass.
TheRLGamer 17 (1 year ago)
Sarah Hayman (1 year ago)
LOL it's Lacy Green
BlackHat Visions (1 year ago)
Ofc, Laci presenting this episode
becksta29 (1 year ago)
Can men make milk exactly same as women if given the right hormones?I mean can they make the right immune factors and antibodies for the baby etc like women do? Breast milk is amazing for health of baby and their immune system and just want to know if anyone knows if men make the same milk or is it lacking things.
Stephen Barba (1 year ago)
If you want the quick answer, we were all female inside our mother at one point
ART emis (1 year ago)
can you explain why people have to wash their teeth,and animals(most of them) don't need to
TELEVISIBLE (1 year ago)
because we were all genderless before the chromosome kick in
george8toes (1 year ago)
Galactorrhea in greek means "flow of milk". If it reminds you of something "galactic" it's because the root is the same. The word "Galaxy" comes from greek, where it means "the road of milk", beacuse greeks believed that the bright line at the night sky is milk, which came out of a goddess's breast.
NOUMAN LATIF (1 year ago)
hello Dnews .. i like your videos on scince topics. i have a topic for you to cover.. the topic is why some people break things when they get angry like smashing there phone on the walls and breaking glass etc. is it help them to relieve stress?? .. thanQ
Hedvika Ráčková (1 year ago)
me before: yeah, why the heck do men have nipples? me now, after exploring the world od yaoi:...well
Joseph Zins (1 year ago)
I think it's simply because as we know, males have an X and Y chromosome and I believe that all men start out as females and later the Y chromosome will kick in and they become male, I think it formed before they became male e.g the Y chromosome kicked in for once
Glenn Matthews (1 year ago)
Abdullahi Sandule (2 years ago)
So God didn't know what gender it will be so he put nipples on both males and females?
Gustav Building Tech (2 years ago)
Ban Laci Green!!!
brandon watkins (2 years ago)
Quick genetics lesson. Cited from "Essentials of genetics 9th edition." Author William s. Klung. Page 88 first paragraph continued from page 87. "During early development, every human embryo undergoes a period when it is potentially hermaphroditic. By the fifth week of gestation, gonadal primordia (the tissue that will form the gonad) arise as a pair of gonadal (genital) ridges associated with each embryonic kidney. the embryo is potentially hermaphroditic at this stage it's gonadal phenotype is sexually indifferent-male or female reproductive structures cannot be distinguished, and the gonadal ridge tissue can develop to form male or female gonads. primordial germ cells migrate to these ridges, where an outer cortex and inner medulla form (outer and inner parts of an organ). The cortex is then able to develop into an ovary, while the medulla may develop into a testis. In addition, two sets of undifferentiated ducts called the wolffian and mullerian ducts exist in each embryonic. wolffian ducts differentiate into other organs of the male reproductive tract, while mullerian ducts differentiate into structures of the female reproductive tract." Now for a quick summary on what causes the male or female reproductive structures to be expressed. basically, it comes down to the SRY gene, this is located on the Y chromosome and at the seventh week the gene express itself and development of the medulla into a testis starts. If there is no Sry gene then the Mullerian ducts form the fallopian tubes, uterus, cervix and so on. many organs of the male and female anatomy are homologous in that they derived from the same structures. examples: The penis and clit are formed from the same basic structure, ovaries and testis you see the trend. like so people can see (never thought I'd say that lol..)
Juice Lords (2 years ago)
What is she doing here
Charlie Sheen (2 years ago)
I want to see her titties.
JustG0tow3d (2 years ago)
laci green is a cunt
Sam Williams (2 years ago)
i really hate you. feminazi shit
Charles DeSol (2 years ago)
Correct answer: "Because the LORD your God created men and women as is!!! Stand steadfastly in faith and shut up!!! Don't question God's perfect work with doubts and disbelief!!!"
SamuelTheFox (2 years ago)
laci is just a awful person. cant watch these
Shut up!! who the hell wants to here this !?!
HammerBroGD Mobile (2 years ago)
Men can still lactate.
CriticalMass 21 (2 years ago)
So... every women has a clitoris aka micropenis?
ShadowBladeX (2 years ago)
I literally instantly went off the video after I saw Laci.
ToBeAwesome (2 years ago)
ShadowBladeX lol
Eogan von Binkhoff (2 years ago)
So if all embrios are female and grow into males with hormones, would it not be easy to undergo FtM transition then? According to Lacy it is possible to "develop penis from the clitoris and scrotum from the labia" with just hormones!!! I wonder if chimpanzees can be grown into humans with those magical hormones too? Amazing. Simply amazing.
Yuvan Shankar (2 years ago)
Here's a question: If a trans-woman goes on estrogen hormonal therapy, can she breastfeed?
QuitoLie (2 years ago)
what is the scientific explaination for transgenders and homosexuals. Just want to know
Artem The GOAT (1 year ago)
QuitoLie The answer is a mental disorder. Bottom line.
Octavio Mendez (2 years ago)
+Jon Laing thx for your attempt! :D
Jon Laing (2 years ago)
This is a really complicated topic that I'm probably not qualified to answer, but what the hell. Homosexuality is seen in hundreds of animal species including our closest relatives. The first instinct would be to say that it is genetic, but there are cases in which one twin is homosexual while the other is heterosexual. Also, it would be a mistake to think that homo/hetero are a binary; it's more of a spectrum and many people sit somewhere in between. There may be some epigenetics at play that plays a role, but to my knowledge science hasn't really figured it out. Sexuality is weird and complicated, and not very well studied (especially female sexuality). As for transgender that one is even more complicated, but it might help to consider that when we think of gender, we're talking about cultural standards of what it is to be a man and what it is to be a woman. Those cultural standards are otherwise arbitrary. As the video already explains, the biological differences between male and female don't develop right away, so essentially males are just modified females. So, given that the biological differences between males and females aren't that large, and the cultural differences are basically arbitrary, some people may feel that they identify more with a gender that doesn't match up with gender society has labeled them. For some people this means they dress differently, maybe use a different name. For some people, they choose to go on hormone therapy, others may undergo surgery all to make their body feel like it matches how they feel inside. Still others may decide that gender is bullshit and don't identify with either man or woman, and live outside those concepts. All of this may seem a little extreme, but when you think about how pretty much every person individualizes themselves based on clothes and mannerisms, and how many people choose to undergo body modifications of different sorts, it kinda seems more ordinary than not. Hairstyles, fashion choices, tattoos, piercings, cosmetic surgery, etc, all of these are pretty common practices for humans. We now live in a time where it's more accepted to not identify with traditional concepts of gender, so why wouldn't people customize that as a form of personal expression, making their outward appearance reflect who they feel they are inside? Sorry there's not much science in this response. To my knowledge there's not been a lot of research done in this area. I should also point out that I'm neither homosexual or transgender, so I may have missed the mark on some of this.
Octavio Mendez (2 years ago)
same like its not even a weird I'm genuinely curious
El rey (2 years ago)
thepap 000 (2 years ago)
why do people hate her so much ?
thepap 000 (2 years ago)
+catfish I did research and I agree
i doubt everything (2 years ago)
i dont hate her i just hate her opinions
FlourishWitherDie (2 years ago)
Good to see Laci has always been inaccurate. All embryos are androgynous, not female. The devopment of the foetus then determines which structures are developed, creating our diamorphic species Aka, you start as a blank slate then your DNA programs the instructions for production.
FlourishWitherDie (2 years ago)
And thats where I disagree, simple terms do not lead to better understanding. You do seem to have some sort of emotional investment in Laci, so this seems to be going nowhere. I will reiterate, why be inaccurate when explaining science to a layman? its crap like this that led to the myth in the first place. Explaining something using terms like this reinforces the myth, the world becomes a slightly more ignorant place. Well done everyone. I will admit though, at least DNews does have some quality checks, unlike Mtv these days...
mightyhan (2 years ago)
Because in a simpler term, a female does not have a bulge below. Which if you look at a foetus before it underwent further growth it does look like a female foetus. Nothing is wrong, it is a visual representation. I can clearly understand what she meant with or without scientific knowledge. Visual description does not infer that she is saying all foetus are female. Also, how does describing something that look like female shown imprecision? One might argue that it is a precise visual representation of a female foetus. Information can be misinterpret no matter how they present it. The problem is not the source, but people themselves. That is why people ask question when they have doubts. However accusing someone saying something they did not shows a lot about your arguments.
FlourishWitherDie (2 years ago)
Why attribute male/female terms to something that at, 8 weeks, looks like a blob with vestigial stumps for limbs? Why refer to an exclusively female structure when no-gender applies? Can you not see how easily this information can be misinterpreted by someone who uses DNews as a primary science source? The problem is, if you dumb down scientific knowledge, understanding is lost. Laci is somewhat of an authority figure, as is Trace and the other guys. Why muddy the water by being inprecise?
mightyhan (2 years ago)
Nothing wrong to say "looks female". She is merely describing something. The point here is she did not said ALL embryos are female. She even said 8th weeks later, genital starts to form.
FlourishWitherDie (2 years ago)
1:30 says different, espesially the bits where she refers to undeffined genital tissue as the 'labia majoris' and 'looks female' when it barely looks human
Jacob Caplinger (2 years ago)
I wish I didn't have nipples, I hate having them
Kayla Mccray (2 years ago)
why do we lose hair when we r old and fragile
Caveman Al Toraboran (2 years ago)
Fact: more testostrone also results into more brain development that makes men smarter.
Jon Laing (2 years ago)
If that's true, does that make you a statistical outlier?
Austin Wallace (2 years ago)
Caveman Al Toraboran (2 years ago)
Bitch so happy that some illnesses can make men to produce milk. She is anti-men.
Lou Kraska (3 years ago)
Women have nipples to
Lou Kraska (3 years ago)
Its so on the womens boobs
The 5th Square (3 years ago)
unrelated: this is my least favorite feminist.
insta musiclover69 (10 months ago)
The 5th Square Youre right. This is completely unrelated. Why did u fucking bother?
Sarah Wesson (3 years ago)
why are guy nipples always shown and girl nipples always censored? better yet, why does every american tv show and movie have uncensored regular male nudity where any tv female nudity is censored and movie female nudity changes the rating to R and gets a mention in the MPAA warning?
Sylvia Rohge (2 years ago)
Welcome to the USA. In Europe it is fortunately not so bad. Where I do not like these double standards. Breast is breast, even in sensibility both are identical. The attracted behavior diverges between the sexes. Therefore, the breast is also an erogenic zone in men. Incidentally, another reason for lactation in men would be breast cancer. Therefore, 5% of all breast cancer cases are also attributed to men, whose mortality in this type of cancer is much higher than that of women. Mainly due to the lack of early detection, breast cancer is usually recognized by the man only when the cancer itself has already massively scattered.
Erik Münso (2 years ago)
You should watch Adam Ruins Everything. (S2E02)
bust down afro (2 years ago)
Grosspizzaontheground (3 years ago)
my first sexual experience was a female dog. I remember it well,, like this video, the swollen pussy, the warm passionate thrusting, taking my time like this guy does to make sure both have a good time. Watching the pussy stretch as it does, it feels so good to do it, and watching this video brings me right back to those early years of having sex with my dog. Definately worth watching a few times. The dog is very well experienced at this you can tell. She is in heat an wants her master to take care of her. I know she is waiting to feel his load pump into her. A beautiful great dane. I would love to have a dog like this one. Her master is making love to his pet and its the way it should be in every man and animal sex encounter.
morgengabe1 (3 years ago)
I feel like Evolution should've taken the nipple away though, but everybody has nipples even though they're only important for a little over half. With evolution in mind, I think that the male nipple is supposed to act as a pacifier for the infant, so that a male can also partake in child rearing.
morgengabe1 (2 years ago)
+Subclavia There are humans who don't have nipples though, aren't there? Do inverted nipples count?
Subclavia (2 years ago)
Although a bit late as a response, with evolution in mind I think there is just nothing that selects against male nipples.
Locked Sheep (3 years ago)
Girls have nipples too
jeepster4u2003 (3 years ago)
My ex-wife says that men have nipples they are closely related to boars, PIGS!
Gabriel Valeriolete (3 years ago)
Galactorrhoea ins't epic, it reminds me of Diarrhea
tenacious645 (3 years ago)
reminds me of, you guessed it, gonorrhea.
i77l V8 (3 years ago)
She is really happy about that!!
Caveman Al Toraboran (2 years ago)
Yousef Avarian (3 years ago)
so we are all trans.. ha?
DynVec (3 years ago)
Too bad DNews, I'll skip all the ones hosted by the hateful Laci Green.
Sledrick Douglas (3 years ago)
Love you Lacigreen! Keep making videos! Love your enthusiasm and charisma!!!
Adil (3 years ago)
can i meet u ?
Saurus (3 years ago)
Hmmmm... Does that mean men are next step in evolution and women are those who failed, just leftovers ? :o
circuswannabe (3 years ago)
Bc God put them there idk
Sydale Boyd (3 years ago)
Because everyone starts off as a girl... We ALL have X chromosomes...
mohammed abdul raheem (10 days ago)
We don't start off as a girl. We start with undetermined sex.
Fire Pop (3 years ago)
If we have to get rid of "milk" if we ever need to., it can be a waste vent. since our little line thingy she spoke of isn't linked with the digestive system.. and yea..
Gra Piken (3 years ago)
This channel is dumbed down shit
Josh (3 years ago)
man have nipple so women can suck on it to have female sex life more happy.
magovenor (3 years ago)
The clitoris is proof that the first person created was a man!
magovenor (3 years ago)
wrong, the clitoris is proof that woman was created from man. The urethra position in women is directly under the clitoris, whereas it passes through the penis. How then can someone that studies the human anatomy not marvel at the differences between men and women?
tenacious645 (3 years ago)
....the penis is an oversized clitoris lol
NVR_Ceejay (3 years ago)
Oh wow
Manos (3 years ago)
can someone fire her please?
Night owl (3 years ago)
goodbye little cousins childhood
Jason Oatman (3 years ago)
Milk flowers.
sudeep chaurasia (3 years ago)
Please post video on man boobs
Angelos Procopos (3 years ago)
I have small nipples and I have big chest muscles because I am male to gym training about 3 years ago then my girlfriend have large nipples and beautiful large breast do not ask me?
Tensai55 (3 years ago)
As far as I'm aware, in almost all primate species the males have nipples. I don't know it that's true of other animal groups, but with the primates you can usually tell because the nipples are easy to spot (for the most part). If other animal families don't have male nipples, perhaps the real question should be why do male primates have nipples, but not other male animals?
Alyssa Pelley (3 years ago)
I regret watching this
kimani Eric (3 years ago)
Love you guys, question....does this therefore mean that the first functional organism was female?
Jon Laing (2 years ago)
Biological sex developed when all life on earth was single celled. Before that they were asexual, being neither male or female. As another user pointed out, human embryos are initially neither, and it's hormones that govern development.
Isaac C. (3 years ago)
Well gosh, now I feel the need to breastfeed my baby Like a real man. NATURE!!!
Harley Ponder (3 years ago)
MinecraftEpicPlayer (3 years ago)
+Isaac Carmichael dafuq
sofia chevalier (3 years ago)
harry syles has two nipples
andrei paul (3 years ago)
why do women have milk in their  boobs ?
StarDust XX (3 years ago)
Foolish girl did not answer the question say it you don't know.
Pablo Tejano (3 years ago)
I once saw a video of a man lactating
Nickname Ghost (3 years ago)
Praise God
Raymond pcs (3 years ago)
Why woman got nipple the main reason are for baby and man to suck haaaa
WAKEUP!! (3 years ago)
Imagine if we men didn't have nipples, we'd look scary
WAKEUP!! (3 years ago)
+WhovianGamer No, we'd look freaky without nipples from the first time.
Pingu (3 years ago)
omg i can breastfeed
Matthew Derosiers (3 years ago)
this freaks me out that i will have milk in my nipples :(
Hunter Kean (3 years ago)
so basicly we were all a girl one time in are life 0.0
Joe Montanez (2 years ago)
Haha. You funny bro.
Johnny Bernard (2 years ago)
Joe Montanez I guess I did
Joe Montanez (2 years ago)
Johnny Bernard Sounds like you forgot...
Johnny Bernard (2 years ago)
I wonder how big my nibbles were as a girl
FlourishWitherDie (2 years ago)
All human embryoes are androgynous not female by default. Its just pure laziness to explain it as such. For example, female embryos exposed to high levels of testosterone in the womb can develop male structures, and vise versa. You start as a basic blueprint, then the trimmings get added later
Ninjaxo Son Of Guts (3 years ago)
0:34 ever heard of transexuals, trans-gender males are usualy more manlt then regular man, adly...
Uniko Omerla (3 years ago)
This bitch again...
Pedro Sanchez (3 years ago)
why is nine plus ten 21???
XenophiaRPGserver (3 years ago)
whats wrong with her face? iz she constapated? LOL :3 I hope she has my baby niples
NATURAL SPIRIT (3 years ago)
Every fetus is a female first!!!dumb girl.that makes man a mutant woman?.lol
Jack O'Hagan (3 years ago)
I have one nipple
MeldThe Steel (3 years ago)
Actually when a baby is a fetus you do not have a clitoris or labia they just look like that, the area where the vagina would be has no opening and is just a crater but will pop up like a bubble forming the scrotum and the penis/clit is too thin to be a penis but too long to be a clitoris so if you end up becoming female the penis/clit will shrink becoming a clitoris but if you end up being male the penis/clit won't change but just become thicker and slightly longer. also if you are female the little crater that is mistaken for labia will separate becoming the vagina.
lildentalfloss (3 years ago)
Pokemon xy wait a second that's a game OK then well
Utsav Talwar (3 years ago)
Male and Female have same nipples, men show them but women do not why???
EzbEMo (3 years ago)
+Phoenix Bush So you started the denouncement. And the other guys are your opponents. So all of you guys are having a Social World War I here!! Facts vs Logic vs Studity. There is no clear winner in my opinion cuz All of you are right.. right about rape, unprepared of outside, bros and stuffs.. Oh well.. Its time to run back to my bunker and wont hear any relplies to my comment. Good Bye. P.S. ITS A DRAWWW
tenacious645 (3 years ago)
It's all social conditioning.
MinecraftEpicPlayer (3 years ago)
+Phoenix Bush Capitalize the first letter of every sentence, "com" is spelled come. You haven't won at all. You haven't yet beat the disease of Feminism. I'm telling you, you need to take your non misleading facts to get over this!
MinecraftEpicPlayer (3 years ago)
+Phoenix Bush Take the non misleading facts. Your disease is getting worse.
Cat Poke (3 years ago)
Now I wanna know what the pros and cons are of the different genders. :'(
Cat Poke (3 years ago)
+Sunny Panwar I don't mean which gender is better, I mean which gender is more enjoyable to be. XD I am a girl but I think it'd be more... comfortable, as a man?
Sunny Panwar (3 years ago)
+Double Moustache Imagine a war between all males and females in the world..
Cat Poke (3 years ago)
+MinecraftEpicPlayer It's still funny but I don't understand why it wouldn't survive. XD
MinecraftEpicPlayer (3 years ago)
+Double Moustache I don't think the internet would survive that. We don't want to start a nuclear war.
Markcut 23 (4 years ago)
She is hot! but I got a feeling thats just the 2 Pounds of Makeup she has on
Life Under Table (4 years ago)
Nipples for man is unused option -like some fuses in the car are unused but in certain conditions they become active and usable which explains why ladyboys are happy with nipples ...lol just kidding 
Bree Gilbert (4 years ago)
So when they are transgender and become female, they will have lovely breasts. Yes, I am speaking from experience. :)

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