What is a significant risk factor for developing gestational diabetes?

Obesity is a significant risk factor for developing gestational diabetes because excess body fat, particularly in the abdominal area, can lead to insulin resistance. This means that the body cannot efficiently use insulin to control blood sugar levels. During pregnancy, hormonal changes can also contribute to insulin resistance, and when combined with obesity, this can push blood sugar levels beyond the normal range, resulting in gestational diabetes.

Additionally, the risk is amplified in individuals who are already at risk due to genetic predispositions or other health issues. Thus, managing weight before and during pregnancy can be an important factor in reducing the likelihood of developing this condition.

To provide context, low maternal age is not typically associated with an increased risk of gestational diabetes; it's usually older age that poses a higher risk. A history of high blood pressure can indicate other health issues but is not a direct risk factor for gestational diabetes. Increased physical activity generally helps in weight management and can reduce the risk of developing gestational diabetes rather than contribute to it.