Gestational diabetes Mellitus (GDM) is a condition characterized by high blood sugar (glucose) levels that is first recognized during pregnancy. It may also be called glucose intolerance or carbohydrate intolerance. Diabetes means that your blood glucose is too high. Your body uses glucose for energy. But too much glucose in your blood can be harmful. Risk Factors: You are at greater risk for gestational diabetes if you: Were overweight prior to becoming pregnant Are older than 30 when you are pregnant Have a family history of diabetes Having gestational diabetes with a previous pregnancy Having too much amniotic fluid (a condition called polyhydramnios) Gave birth to a baby that weighed more than 4 kg or had a birth defect Have had an unexplained miscarriage or stillbirth Have high blood pressure Symptoms: Usually there are no symptoms, or the symptoms are mild and not life threatening to the pregnant woman. The blood glucose level usually returns to no...