A wet nurse is a woman who breast feeds a baby that isn't her own. These children may be known as milk-siblings and in some cultures share a special relationship. Reasons for use A wet nurse may be employed if the mother of a baby is unable or unwilling to breast-feed her infant. The reasons may range from drug use (prescription or illegal) to illnesses such as breast cancer, to a perceived insufficient production of breast milk. Wet nurses have also been required following multiple births where… (More on Wetnurse)