The fetus and the newborn of a diabetic mother are at an increased risk of periconceptional, neonatal and long term morbidities. The umbilical coil of a fetus is his/her lifeline which provides all the essential nutrients. An abnormal coiling is associated with an increased risk of an adverse outcome. The book contains essential information on common perinatal complications in the infants of diabetic mothers. The mechanism of coiling of umbilical vessels, normal and abnormal coiling, its relation to gestational diabetes and its significance in predicting an abnormal transition from intrauterine to ex-utero life by antenatal assessment is also highlighted. The book is ideally suited to the needs of pediatricians, obstetricians and postgraduate students interested in the discipline of Pediatrics and Neonatology.