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It's left over from early fetal development - at a certain point we were just a fetus with an undetermined gender, and then a flood of hormones came along in utero and told us what gender we were going to be. Nipples are a leftover from that time. Men do have mammary tissue, anyway. Just a tiny, tiny bit of it.
During conception, each fertilized egg starts out with an X chromosome (from the mother) and an X or Y chromosome from the father, which determines their gender. XX will be a female, and XY will be a male. During fetal development, what started out as an undetermined gender gets developed during the fetal stage into a male or a female.
Additional facts
- Most young men grow some breast tissue at puberty which then subsides and there is a fairly common condition called gynecomastia where men grow breasts. This can be treated very successfully by surgery.
- Men can also get Breast cancer which tends to get worse much more quickly than in a woman, so any man past puberty who notices any abnormality, or lumps in their breast tissue, should see a doctor immediately.
- Men have nipples because we all were conceived gender neutral. Somewhere during fetal development we develop into a female or a male. You may notice male and female have all the same "bits" but they differ in size and function. The clitoris for example is the female counterpart to the penis........ovaries to gonads ........and nipples either sit on a pair of breasts or for the male are just there. Also, early embryonic tissue that turns into the uterus in females turns into the prostate gland in males.
Male humans can and do produce milk, i.e., they can lactate. Male breasts contain all the structures needed to produce milk.
Further, it is not uncommon to observe lactation in both male and female infants, due to the stimulation they receive from their mother's hormones.
What else can I help you with?
Do men have to have nipples like if a man doesn't have a nipple..is that weird?
Men don't "have to," but it is weird if he does not because EVERYONE, men & women, have nipples.
Why do men have nipples?
Men have nipples because all embryos start out with the same basic body plan, which includes developing nipples before sexual differentiation occurs.
Why do gay men have big nipples?
Most gay men enjoying having their nipples pinched, sucked, bite on while having sex. Overtime their nipples will become more erect and grow in size. A: What rubbish! Gay men's nipples are just the same as any man's.
Can men survive without nipples?
no
Do nipples eject CO2 in men?
No.
Are hairy nipples normal?
Yes hairy nipples are normal for Men... but for girls they usually dont grow hair around the nipples.
Can men be born without nipples?
No, you must not forget that only Hawaiian men with out penises can have have large breast but no nipples
Why do girls have to cover their nipples when guys don't?
the pervs of the world find woman nipples sexual but not men.
Do men notice long nipples when bra less?
Men are hard-wired to look at / notice/ stare at breasts and nipples in almost any circumstance or surrounding.
Why do men have hair on their nipples?
Yes. We are mammals. That happens.
Why do men have nipples when they dont need them?
its because when you are a zygote then you can either be a boy or a girl so the nipples develop anyway
Do women like men with hairy nipples?
Shaved obvs, hairy nipples look like spiders like bevans
