How come guys have nipples?

Question

My bro told me to ask this...yea thats it...my bro. He hasn't been able to sleep for the last week because this is bugging him so much.

Answer 1

"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. "

See the Straight Dope for more information.

Answer 2

Men and all male animals, have nipples. This is a remnant of fetal development. Human beings, male and female start developing the same way. At an early time in fetal life, hormones are secreted and the fetus differentiates into male or female. What is even more surprising is that basically, all humans start off as females, and then develop into males, as the hormones kick in during fetal life. Men are bascally degenerates from the female form....a fact well known to embryologists. That is, if the male hormone was not present at early development, then the fetus would become a female. [let's see if your bro can sleep after this!] Since we all start with the same 'template', some organs are vestigial...nipples being one of those organs.

And, do you know that if you take estrogens (the female hormone) you can actually grow functional breasts?. Mind boggling, huh?! Try to sleep now!!!

Happy thoughts!!

Doctor H

Answer 3

nipples are proof that the organism is a mammal. the nipples of the humans form before the sex organs of the human are formed when the baby is developing inside the mother's womb.

Answer 4

Because while we are fetuses and have no gender yet we get the sex organs and some just don't go away

Answer 5

BECUASE WHEN PEOPLE ARE CONVIED THERE ARE A FEMALE FOR LIKE A SECOND AND THEN STAY FEMALE OF TURN IN TO A MALE

Answer 6

good question!...they served no purpose for men.