Lactation , secretion and yielding of milk by females after giving birth. The milk is produced by the mammary glands , which are contained within the breasts. The breasts, unlike most of the other organs , continue to increase in size after childbirth. Although mammary growth begins during pregnancy under the influence of ovarian and placental hormones , and some milk is formed, copious milk secretion sets in only after delivery. Since lactation ensues after a premature birth , it would appear that milk production is held back during pregnancy. The mechanism by which this inhibitory effect is brought about, or by which lactation is initiated at delivery, has long been the subject of an argument that revolves around the opposing actions of estrogen , progesterone , and prolactin , as studied in laboratory animals, goats, and cattle.
Induced lactation: why a woman doesn't need to bear a child in order to breastfeed it
Lactation - Wikipedia
Lactation describes the secretion of milk from the mammary glands and the period of time that a mother lactates to feed her young. The process naturally occurs with all post- pregnancy female mammals , although it predates mammals. Newborn infants often produce some milk from their own breast tissue, known colloquially as witch's milk. In most species, milk comes out of the mother's nipples ; however, the monotremes , egg-laying mammals, lack nipples and release milk through ducts in the abdomen. In only one species of mammal, the Dayak fruit bat from Southeast Asia , is milk production a normal male function. Galactopoiesis is the maintenance of milk production. This stage requires prolactin.
Lactating Not Pregnant: What Does It Mean?
Lactation is the process of producing breast milk. For women who are pregnant or recently gave birth, lactation is normal. Hormones signal the mammary glands in your body to start producing milk to feed the baby. This is called galactorrhea, and it can happen for a variety of reasons. Galactorrhea happens to around 20 to 25 percent of women, according to Dr.
With considerable dedication and preparation, breast-feeding without pregnancy induced lactation might be possible. Normally, the natural production of breast milk lactation is triggered by a complex interaction between three hormones — estrogen, progesterone and human placental lactogen — during the final months of pregnancy. At delivery, levels of estrogen and progesterone fall, allowing the hormone prolactin to increase and initiate milk production.