Three types of fetal cells can migrate into maternal organs during pregnancy: Some mothers literally carry pieces of their children in their bodies

Three types of fetal cells can migrate into maternal organs during pregnancy: Some mothers literally carry pieces of their children in their bodies: A pregnant woman's blood stream contains not only her own cells, but a small number of her child's, as well, and some of them remain in her internal organs long after the baby is born. Understanding the origin and identity of these cells is vital to understanding their potential effects on a mother's long-term health.