why do men have nipples ?

Answer 1

Is this Jack from Celebrity Big Brother? He asked the same question and didnt know what an embryo was, Are you sure you're not the same person. lol. J/K. most of the answers above are correct. They develope between 6-8 weeks as this is the time when the embryo decides whether the baby is going to be male or female

Answer 2

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.

Insufficient 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.

The 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.

Answer 3

All the other answers are fine - years ago I read a novel by Edna O'Brien and she wrote about a man who kept a baby alive for a whole night by letting it suck on his nipple. Some readers find her very fey and rather pretentious, but I think she knows some interesting things.

Answer 4

All humans begin life as a female. Thus, we all have nipples. It's only a short time later, that some of us become male.

Answer 5

iv heard its because when we are growing from a foetus we all start the same sex and its not until a certain gene is added that our sex is determined, the mans nipple is there just in case we came out female, would of looked pretty funny with breasts with no nipples wouldn't it hahaha

Answer 6

everybody starts out as a girl
so then they change into a guy and the get nipples

Answer 7

beause when u were inside ur mothers tummy, u were firstly formed as a girl, before u turned into a boy. so thats y u have nipples.
and thats y u get breasts wen u get fat!!!
and men can also get breats cancer incase u didnt already know.
are u jack? jade goodys bf?? from cbb?
just that he asked this question on cbb.

Answer 8

Males and females initially develop quite similarly in the womb.We just both get them before the sexes differentiate.

Answer 9

men are only 1 inch away from being a woman.

Answer 10

mammary glands form in an embyo before reproductive.