Description:Diabetes mellitus is one of the most common medical problems complicating pregnancy. Achieving optimal outcomes for diabetic women and their fetuses requires that care providers employ the best data available. In this issue we have collected expert opinions and reviews from leaders in the field of diabetes in pregnancy to provide the most up-to-date information. Topics include: use of oral anti-diabetic agents for treatment of gestational diabetes, the association between diabetes and stillbirth, fetal monitoring strategies, identification of the overgrown fetus, obstetric management of the diabetic pregnancy at term, and the postpartum and lifetime implications of gestational diabetes.