for girls & boys A girl's breasts start producing milk at puberty.?
539529
u have false information.during pregancy in the 5th month milk ducts are formed in the breast  and milk comes out only after the  childbirth not before tht the milk ducts  get converted into the liquid form.How  does this happen i dnt know but ITS ALL THE CREATION OF GOD
701104
after puberty\nin the t its
279020
yes in some situations.  Sometimes a pituitary tumor can hypersecrete a hormone or sometimes a medication can inhibit an inhibitory hormone (that prevents a man from producing prolactin, hormone responsible for milk production) :) this is called GYNECOMASTIA.. men starts to produce milk but I've never heard giving them to babies.  maybe to their wives hahaha
13909
I remember hearing it this way:  (in layman's terms) When we are in the womb, the genetics that determine whether we will become a man have not "kicked in" yet. At that time the mammary glands are beginning to develop. Then the "male" codes kick in and stop the process after the nipples have developed. They then become just decorative.
868669
The female breasts have been associated more sexual function, than nutritional function.  Nudity and sex in the United States have become taboo in the public forum.  The female breasts, whose function is non-sexual, has taken on a sexual status. AND, since sexually charged items are highly censored on all public media forums in the United States, a woman's breast is considered to controversial for all ages public viewing.  So if a 7 year old child is watching Dr. 90210 with her mother she might be scarred by the sight of female breasts.  (Or so the censors believe). \n\nTo answer your second questions all humans(including men), have nipples to prove that humans are mammals. Remember that the distinguishing features of mammals, from whales to mice, are two: having hair and nursing their offspring. Granted the male of our species can not nurse, but thosenipples are there to remind us what species men are....and to let women know when men are cold (lol)
1170787
A girl goes through more changes dealing with puberty than a boy does: her breasts either grow or don't and she has a period.
925534
She is only 13. Some girls dont start developing untill 15 or 16. As far as breasts tell her dont worry about them right know,she does not need to impress any one. Most girls that are developed at this age have eaten unknowing in there food, steriods. Before she knows it she will grow. She might be wanting her period to start but she does not need to worry untill she is 17 then worry .
197374
Yes but only at certain times.\nAs breasts are mostly composed of adipose tissue, their size can change over time if the woman gains or loses weight. It is also typical for them to grow in size during pregnancy and whilst breastfeeding, mainly due to hypertrophy of the mammary gland in response to the hormone prolactin. The size of a woman's breasts usually fluctuates during the menstrual cycle, particularly with premenstrual water retention. An increase in breast size is also a common side effect of use of the contraceptive pill.
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
168127
To tell you the truth, nobody really knows. The best explanation I've been able to find (and frankly it doesn't explain very much) is that nipples aren't a sex-linked characteristic. In other words, nipples are just one of those sexually neutral pieces of equipment, like arms or brains, that humans get regardless of sex. \n\nAs you may know, every human being gets a unique set of 23 pairs of chromosomes at conception. These fall into two categories. One pair of chromosomes determines sex--the XX combination means you become female, the XY combination means you become male. \n\nThe other 22 pairs, the non-sex chromosomes (they're called autosomes), supply what we might call the standard equipment that all humans get. These 22 pairs constitute an all-purpose genetic blueprint that in effect is programmed for either maleness or femaleness by the sex chromosomes. The programming is done by the hormones secreted by the sex glands.\n\n\nWebMD\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
1161384
The lactating will stop when you stop stimulating the mammory glands. Stop playin' with the boobies girl! *L
259749
Breasts grow under various circumstances so there's really not just one simple answer.  Generally, puberty ends for more girls in their late teens and breast growth stops then.  This isn't always true--my breasts were the same size from ages 14 to about age 22 when all of a sudden they grew quite a bit more, totally unrelated to weight gain.  \n\nPregnancy makes breasts grow although many women lose that breast growth after pregnancy and breastfeeding are complete.\n\nSome women experince some breast growth while taking hormonal birth control.  Other hormonal changes can cause breast growth as well.
674385
They are called breasts.
256797
Both male and female adolescents may experience a benign milky discharge during puberty. A milky discharge is usually from an elevated level of the hormone prolactin. Prolactin is a hormone produced by the pituitary gland, which is responsible for lactation.  Some pituitary tumors--even tiny ones called “microadenomas”--can cause excess prolactin secretion that can lead to milky nipple discharge, usually from both breasts.  Some medicines such as those for depression, anxiety, or hormone replacement can also cause this.
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.
20048
Men 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.
908258
it sounds like milk to me, which should not form without a pregnancy but it can happen when you have an overload of hormones, you should see a doctor, and you should stop having sex until you do. breast cancer doesnt happen because you have been pregnant or have taken medicine. it happens to anyone at any age , even men, and no one really knows why,