If you ask anyone that why women have nipples, the simple and straight answer would be that they have them for feeding babies. However, the bodily question that why men have nipples has always befuddled many. The answer lies in early fetal development when the human beings are simply a fetus with an undetermined gender. During the embryonic development, the presence or absence of Y chromosome determines the gender. Up to around six weeks, male and female are basically the same.
