Gestational diabetes will be first diagnosed during the pregnancy. Like type 1 & type 2 diabetes, gestational diabetes will causes blood sugar levels to become very high. When you are pregnant, the body will naturally become more resistant to the insulin by that more amount of glucose was available to nourish the baby. For most moms, this is not a problem: When the body needs additional insulin to process the excess glucose in the blood, the pancreas will secretes more.

But if pancreas cannot keep up with increased demand for the insulin during the pregnancy, blood sugar levels will rises too high because the cells are not using the glucose. This results in the gestational diabetes.

Anyone can develop the gestational diabetes, & not every woman who develops this condition will have certain known risk factors. About 5 - 10 % of all the pregnant women or overweight, particularly if the body mass index (BMI) was 30 or even higher will get gestational diabetes. Obesity & GDM will share same health consequences, obese women & their offspring will be at a higher risk for the adverse outcomes.