Let-down is the process by which milk is released from the milk
glands to the milk ducts in preparation for breastfeeding. When a
breastfeeding woman's breasts are stimulated by suckling or pumping, the
pituitary gland produces the hormone oxytocin, which triggers the let-down
Signs of let-down include:
A tingling sensation in the nipples, sometimes
with mild pain.
Milk leaking from the breast before nursing or
pumping, or leaking from one breast while the baby is nursing at the other
breast. Some women may experience let-down when they hear a baby
Uterine cramps during nursing.
bleeding during or just after nursing or pumping the breasts.