Because...: Human babies are mammals, and so babies have nipples. Some grow up to be women with breasts and nipples. Others grow up to be men with nipples (and sometimes a little bit of breast tissue under the nipple). In other words, "that's just the way you're made". It also means men can get breast cancer on rare occasions.
Answered 7/25/2015
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A doctor has provided 1 answer
A doctor has provided 1 answer
A doctor has provided 1 answer
4 doctors weighed in across 2 answers
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