why do men have nipples?
540150
for emergency.\nin case the world runs out of milk
72748
Why Men Have Nipples\n\nFor the most part, nipples are on men's chests not for ornamentation, but because we all initially originate from the same kinds of tissues. By Louanne Cole Weston, PhD\n  \n\nMales and females, though very different, have a great deal in common. In the earliest part of our embryonic development, we all start out much the same. Though the sex of an embryo is determined when sperm meets egg, the genital anatomy of males and females cannot be visually distinguished with the use of ultrasound until the 15th week of pregnancy. \n\n\nFrom the beginning, we all have the tissues that later develop into functioning parts, depending on whether we are genetically coded to be male or female. (The genetic coding that leads to people who have both male and female anatomical traits is much more complex than we'll get into here.) \n\n\nMales have nipples because they develop with the capacity to be female should their chromosomes dictate. Females call upon this capacity when they hit puberty and their breasts develop. Later, if they become pregnant, they call upon it again as milk is created in their breasts. Generally, males do not have a reason for the nipple to function, although, from time to time, adolescent and adult males develop a condition called gynecomastia, in which hormonal levels fool the breasts into beginning to develop. \n\n\nBut for the most part, nipples are on men's chests not for ornamentation, but because we all initially originate from the same kinds of tissues. Males just don't need their breast tissue to be a functioning part of their anatomy
86011
Males also have the hormone estrogen. Estrogen menlarges breast size. Women have more of it, so they have bigger breasts. They also have luteniezing hormone which produces milk for mammary glans after giving birth. Men do not have that. Women displaying male qualities like beards have an excess of testoserone and androgen
60214
A human embryo begins developing as a female (or some say anatomically indistinguishable), complete with mammary glands and ducts.  A couple of months later the hormones kick in and well...boys will be boys.  Most people (scientists, researchers, et cetera) say the nipples are from that "indistinguishable period."\n\nAs far as all land mammals having nipples, I had to Goooogle that one.  The site I found said all land mammals have nipples except stallions.
168221
Male nipples aren't exactly a genetic glitch: they are evidence of our developmental clock. In the early stages of life from conception until about 14 weeks, all human fetuses look the same, regardless of gender. At the tender age of 14 weeks post-fertilization , genetically-male fetuses begin to produce male hormones including testosterone. These hormones turn the androgynous fetus into a bouncing baby boy. \n\nHere's where the developmental clock comes in. By 14 weeks, when the hormones turn on, the nipples have already formed. So, while our male fetus goes on to become a baby boy, he keeps his nipples, reminding all of us that people, male and female, started off the same way. \n\nIn most men, the nipples really don't change after this point, but some men can develop a condition called gynecomastia. In gynecomastia, the fatty tissue around the nipple develops and eventually appears similar to a female breast. This can occur whenever the testosterone level is lowered by medications, such as those that treat prostate cancer, and by natural hormonal changes due to obesity, adolescence or aging. \n\nLuckily, most of us don't worry too much about male nipples, so men never have to worry about finding swimtrunks and a bikini top that fit.
126625
Where's your evidence?\n\nWe all start out female (that's the reason guys have nipples). The gender gene kicks in later and we develop into males and females. Suppose any genetic or hormonal conditions which lead to homosexuality kick in after gender is determined? There'd be no more reason to think that ALL women would therefore be bisexual than there would be to say all men were bisexual.
43494
yes because there are nerves that connect the nipples to the clitoris.
962912
you should read the book why do men have nipples.  it askes a similar question and a doctor answers it.
168472
They have boobs because they are the ones that give birth.  So she can give the baby milk until it is old enough to eat food.\nThey wear bra's to keep their boobs from sagging too much, because after some years, just like old peoples skin sags, boobs droop down, if they weren't supported for all those years.
281546
Male nipples aren't exactly a genetic glitch: they are evidence of our developmental clock. In the early stages of life from conception until about 14 weeks, all human fetuses look the same, regardless of gender. At the tender age of 14 weeks post-fertilization , genetically-male fetuses begin to produce male hormones including testosterone. These hormones turn the androgynous fetus into a bouncing baby boy. \n\nHere's where the developmental clock comes in. By 14 weeks, when the hormones turn on, the nipples have already formed. So, while our male fetus goes on to become a baby boy, he keeps his nipples, reminding all of us that people, male and female, started off the same way.
267783
WHY DO WOMEN HAVE BOOBS?
1129775
ALL nipples are sexy (thats' cause I love women so much, \nespecially their breasts). Leave nature alone, I'm sure you're\nbeautiful just as you are.
596553
It's a primal thing.  Men see big boobs and wide hips and deep down inside their little minds they think "oooh I bet she could birth some children".  Of course, somewhere along the way this is just dumbed down to "Oooh boobs".  Men are simple dumb creatures like that.  It takes very little to make them happy and keep them that way.
1142012
I actually do know this.  In eutero, your nipples are formed before your sex organs develop.  Women go on to use hormones to create breasts, but for men, there is absolutely no reason to have them.\n\nThat is the 100% truth...
602450
Without Nipples the Male Chest Looks Strange.  The nipples provide a focus point for the male chest. They direct the eye to the curve of the pectoral muscle. \n\nMen and women are mammals (from the Latin mamma breast) a species that have breasts and feeds its young with milk. The human embryo has tissue that will evolve into breasts. Both male and female babies are born with nipples and ducts intact. It is the presence of genes that direct hormones to differentiate the breast tissue. The Y chromosome stimulates hormones such as testosterone to form male features.\n\nInsufficient or defective testosterone, poor tissue responsiveness, or an unbalance of other hormones like Estrogen and Prolactin can cause female like breasts even in men (Gynecomastia). At birth, the small amount of the mother's estrogen in the baby can result in small breasts that usually resolve. There can be an inbalance of hormones during male puberty that can result in temporary breast growth, which for most resolves. There are many medical problems and drugs that can cause male breast growth. \n \nThe nipple is actually the central protrusion inside of the pigmented areola. There is a thin muscle just under the skin that when stimulated, tends to flatten the puffed male nipple areola. This muscle when stimulated in a breast feeding woman, projects the nipple for the baby. Nerves that innervate the nipple / areola can produce pleasure for both men and women.
674385
They are called breasts.
301942
no. men have nipples to prevent drowning when wading in water. watch men and you see them stop wading out when water reaches nipples, if we had buttons we would keep going and drown