I know this sounds crazy, but I have always wondered, why do men have nipples?

"Both men and women have nipples because in early stages of fetal development, an unborn child is effectively sexless. Nipples are present in both males and females; it is only in a later stage of fetal development that testosterone causes sex differentiation in a fetus."

men have nipples becasue while growing in the womb all humans are female until so many weeks is when we grow genitals to make useither female or male thats why men have nipples

this because at the beginning of the growth of the foetus in the wombfor both males and females the same tissues(even the genitals) have the same origin it then differentiates into male and female under the influnce of the hormones.if men get enough female hormones, they may develop breasts.

There is a book i believed is titled "Why men have nipples". If your really curious, you should read it

At some point in our evolution it was necessary that both male and female have the capacity to nurse the newborn.

Thats easy someday it will all change men will be having babys instead and who will breast feed them then!!!!

when u marry , ur other half may use it.