How Does Induced Lactation Work?
It is important to remember that prolactin and oxytocin, the hormones that govern lactation, are pituitary, not ovarian hormones. Therefore, even if a woman has had a hysterectomy, she may lactate, providing her overall health is good. (Estrogen, in the form of birth control pills or for replacement therapy, is a lactation suppressant.) Both prolactin, the milk-making hormone, and oxytocin, the milk-releasing hormone, are produced in response to nipple stimulation. While there are now several regimens that use hormone therapy to assist in bringing in milk, many women have induced lactation with only mechanical stimulation. This consists of breast massage, nipple manipulation, and sucking—either by a baby or a hospital grade electric breast pump. Some adopting mothers rent a breast pump in anticipation of the infant; other mothers simply put the adopted infant to breast.