Gestational diabetes is high blood sugar (
Glucose intolerance during pregnancy
Causes, incidence, and risk factors
Pregnancy hormones can block insulin from doing its job. When this happens, glucose levels may increase in a pregnant woman's blood.
You are at greater risk for gestational diabetes if you:
- Are older than 25 when you are pregnant
- Have a family history of diabetes
- Gave birth to a baby that weighed more than 9 pounds or had a birth defect
- Have sugar (glucose) in your urine when you see your doctor for a regular prenatal visit
high blood pressure
- Have too much amniotic fluid
- Have had an unexplained miscarriage or
- Were overweight before your pregnancy
Review Date: 09/11/2010
Reviewed By: Susan Storck, MD, FACOG, Chief, Eastside Department of Obstetrics and Gynecology, Group Health Cooperative of Puget Sound, Redmond, Washington; Clinical Teaching Faculty, Department of Obstetrics and Gynecology, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.