Gestational Diabetes MellitusAbout This Hardback Gestational diabetes is a clinical condition in which a woman with no diabetes develops high blood sugar levels during pregnancy. This condition increases the risk of a cesarean section, pre eclampsia and depression. If unresolved, babies born to mothers with gestational diabetes may be too large, have low sugar levels post birth and develop jaundice. They may also be at risk of developing type 2 diabetes and being overweight later