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Males secrete factors that block the development of female ducts and structures. Once the male embryo produces testosterone, the hormone can influence other sex-specific traits around the body. Men having nipples doesn't really have any evolutionary advantage, but it usually doesn't hurt anything either. Barring specific medical conditions—like a tumor on ...


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Yes. This article on the Mayo Clinic site suggests combining three approaches: hormones before the baby's arrival, if there is time pumping both before and after the baby's arrival feeding the baby through a system that provides nursing pressure (such as this SNS, a bottle you wear around your neck with a thin tube you put on your nipple, so that the baby ...


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Evolution tends to select out traits that are harmful (in quite simple terms) AND expressed soon enough to negatively affect reproductive success. Nipples (and breast tissue) on males are extremely unlikely to have a negative effect on reproduction, which means there's no negative selective pressure on them. Since all embryos have the tissue required to ...


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In most of the countries, obstetricians are the physicians specialised in breastfeeding. Sometimes, pediatricians are also involved but they often tend to focus more on the breastfeeded child, leaving obstetricians the lead concerning the mother. Here a note from the American College of Obstetricians and Gynecologists: http://www.acog.org/Resources-And-...


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