One of the most frightening medical conditions of pregnancy is diabetes mellitus. Previously there was widespread support for termination of diabetic pregnancies, those days have long gone, and rightly so because of improvements in the detection and management of such pregnancies. Heeding of the warning signs of abnormal genetic and biochemical parameters in families of women of pregnancy age and early detection of diabetes make the prognosis for such pregnancies good. This book does not recommend how to manage a diabetic pregnancy but presents to obstetricians, diabetologists, neonatologists, nurses and other health practitioners the biochemical changes in diabetic pregnancies. Additionally for women burdened with a family history of diabetes, data is available for their physicians and themselves on inherited genetics, and biochemical changes that can complicate pregnancy.In the emerging world, in multicultural societies like Canada, Australia and Germany, the data presented is absolutely necessary to cue about biochemical changes that might occur during gestation of persons of mixed ethnicity.