Gestational Diabetes: Causes, Symptoms, Risks, and Treatment

Gestational diabetes is a form of diabetes that arises during pregnancy, impacting how the body processes and manages blood sugar levels. While it often resolves after delivery, unmanaged gestational diabetes can lead to significant health complications for both the mother and the baby. Often diagnosed in the second or third trimester, this condition requires careful monitoring and lifestyle adjustments to ensure a healthy pregnancy. In this article, we’ll explore the causes, symptoms, and treatment options for gestational diabetes, helping expectant mothers stay informed and proactive about their health.

Causes

Glucose is derived from the foods you consume. The pancreas, located just behind the stomach, produces a hormone called insulin. Insulin facilitates the absorption of glucose into body cells for energy production, and any extra glucose is stored for future energy needs. Gestational diabetes happens when your body fails to generate the extra insulin needed to regulate blood sugar levels during pregnancy. As the pregnancy progresses, hormones released by the placenta can reduce the effectiveness of insulin, causing the body to struggle with maintaining normal blood sugar levels. In some women, this leads to higher-than-normal blood sugar levels. Factors such as excess weight, a family history of diabetes, or a prior episode of gestational diabetes can raise the likelihood of developing this condition.

Who’s More Likely to Develop Gestational Diabetes?

Approximately 4 to 8 out of every 100 pregnant women develop gestational diabetes. The incidence rate is sometimes reported as 16% in Indian women. Although gestational diabetes can occur in any pregnancy, some women have a higher likelihood of developing it due to specific risk factors, such as:

• Being older than 25 years (the likelihood increases further after 35).
• Belonging to specific ethnic backgrounds, including African American, Hispanic, Native American, or Asian American, increases the likelihood of developing gestational diabetes.
• Being overweight or obese before pregnancy.
• Having a personal history of gestational diabetes or prediabetes.
• Giving birth previously to a baby weighing over 9 pounds.
• Having close family members (parents or siblings) with type 2 diabetes.

Up to 14 out of every 100 women with these risk factors may develop gestational diabetes.

How Dangerous is Gestational Diabetes?

Elevated blood sugar during pregnancy can be harmful to both the mother and baby. It raises the mother’s risk of complications like preeclampsia (high blood pressure) and may also result in premature delivery. High maternal blood sugar can cause the baby to grow excessively in the womb, leading to a larger-than-normal birth size, a condition called macrosomia. This can lead to a difficult delivery, increased risk of birth injuries, or the need for a cesarean section.

In severe cases, poorly managed gestational diabetes may increase the risk of stillbirth. After birth, babies may face issues like jaundice, breathing difficulties, or dangerously low blood sugar (hypoglycemia). This happens because the baby’s body continues producing extra insulin in response to the high sugar levels experienced in the womb, even after birth.

Symptoms

As gestational diabetes may not show obvious signs, doctors recommend testing all expectant mothers for it during weeks 24 to 28 of pregnancy. For women who are obese, belong to high-risk ethnic groups, or have a history of gestational diabetes or type 2 diabetes, doctors may advise testing during the first prenatal visit. Diagnosis is typically confirmed through an oral glucose tolerance test (OGTT), which checks blood sugar levels before and after drinking a sweet glucose solution. Some major symptoms are listed below.

• Increased thirst and urination.
• Fatigue (feeling tired all the time).
• Blurred vision.
• Infections of the bladder, vagina, or skin.

Treatment Options

Following a nutritious diet, staying physically active, and keeping a healthy weight play a key role in both preventing and managing gestational diabetes. Your doctor will monitor your blood sugar closely and may refer you to a specialist, such as an endocrinologist or diabetes educator, for better control and guidance.

If lifestyle changes like diet and exercise aren’t enough, your doctor may recommend oral medication or insulin therapy. Since women with a history of gestational diabetes have a higher risk of developing type 2 diabetes later, it’s important to test blood sugar levels about six weeks after delivery and continue with regular follow-ups. Nursing your baby can help decrease their chances of becoming overweight or developing type 2 diabetes as they grow older.

Questions to Ask Your Doctor

• What steps can I take to lower my risk of developing gestational diabetes?
• How often should I check my blood sugar levels if I’ve been diagnosed with gestational diabetes?
• How often should I test my blood glucose after giving birth?
• Can gestational diabetes cause other long-term health complications?
• Is it necessary to consult an endocrinologist for managing gestational diabetes?

Frequently Asked Questions