Symptoms of Gestational Diabetes: What to Look Out For

What if the small changes you've been noticing aren't just part of pregnancy, but subtle signals from your body? Symptoms like unusual thirst, constant fatigue, or frequent urination can sometimes point to something more significant than typical pregnancy changes. With gestational diabetes affecting nearly 5 to 8 million pregnant women in India each year, awareness is essential. Recognising the signs early can help you seek timely care and support a healthier pregnancy for both you and your baby.

In this blog, we'll explore the symptoms of gestational diabetes and the early warning signs that are often easy to miss, but important to understand.

What is gestational diabetes?

Gestational diabetes is a type of diabetes that develops during pregnancy in women who did not have diabetes before. It occurs when the body is unable to produce enough insulin to manage blood sugar levels effectively.

During pregnancy, hormonal changes can lead to insulin resistance, making it harder for the body to use insulin properly. As a result, blood sugar levels may rise. While this condition usually resolves after childbirth, it requires careful monitoring and management during pregnancy.

Understanding the signs of gestational diabetes is important for early detection and timely care, helping to ensure a healthy pregnancy for both mother and baby.

Types of gestational diabetes

Gestational diabetes is generally categorised based on how it is managed during pregnancy. Understanding these types can also help recognise the symptoms of gestational diabetes and ensure timely care.

Diet-controlled gestational diabetes (GDMA1)

In this type, blood sugar levels are managed through healthy eating, regular physical activity, and lifestyle adjustments. No medication is required, but careful monitoring of diet and blood glucose levels is essential to keep everything under control.

Medication-controlled gestational diabetes (GDMA2)

When lifestyle changes alone are not enough to manage blood sugar levels, medication may be prescribed. This can include insulin or oral medicines to help regulate glucose levels and reduce the risk of complications during pregnancy.

What are the symptoms of gestational diabetes?

In many cases, gestational diabetes does not present clear symptoms, which is why routine screening during pregnancy is essential. However, some women may experience subtle signs of gestational diabetes, including:

1. Increased thirst

In gestational diabetes, high blood glucose levels increase the concentration of sugar in the blood, triggering the brain’s thirst centre and causing excessive thirst, a condition known as polydipsia. Excess glucose is also flushed out through the kidneys, pulling water from the body along with it. This can lead to dehydration and a persistent need to drink more fluids.

2. Frequent urination

When blood sugar levels rise beyond what the kidneys can reabsorb, excess glucose is passed into the urine through a process called glycosuria. This glucose pulls extra water along with it, a mechanism known as osmotic diuresis, resulting in increased urine production and more frequent urination.

3. Fatigue

Fatigue occurs because, despite high levels of glucose in the bloodstream, cells are unable to effectively utilise it due to insulin resistance. This leads to reduced energy availability at the cellular level, causing a feeling of tiredness and low energy.

4. Blurred vision

High blood glucose levels can cause fluid shifts in the lens of the eye, altering its shape and affecting its ability to focus properly. These osmotic changes can lead to temporary blurred vision, which may fluctuate with changes in blood sugar levels.

5. Dry mouth

Dry mouth, or xerostomia, is often a result of dehydration caused by osmotic diuresis. As the body loses more water through increased urination, saliva production decreases, leading to a dry or sticky sensation in the mouth.

6. Infections

Elevated blood glucose levels can impair the immune system by reducing the effectiveness of white blood cells. At the same time, higher glucose levels in bodily fluids provide a favourable environment for the growth of bacteria and fungi, increasing the risk of infections such as urinary tract and yeast infections.

Risk factors for gestational diabetes

Understanding the factors that increase the likelihood of developing gestational diabetes can help with early awareness and timely care. While gestational diabetes symptoms may not always be obvious, certain conditions and lifestyle factors can increase the risk.

• Being overweight or obese: Excess body weight can lead to insulin resistance, making it harder for the body to regulate blood sugar levels during pregnancy.
• Family history of diabetes: If a close family member has type 2 diabetes, the risk of developing gestational diabetes increases due to genetic predisposition.
• Previous history of gestational diabetes: Women who have experienced gestational diabetes in a previous pregnancy are more likely to develop it again.
• Age over 25 years: The risk of gestational diabetes tends to increase with age, particularly in women over 25.
• Polycystic ovary syndrome (PCOS): This hormonal condition is linked to insulin resistance, which can raise the risk of developing gestational diabetes.
• Sedentary lifestyle: A lack of regular physical activity can contribute to insulin resistance, increasing the likelihood of developing gestational diabetes.

When to seek care?

It is important to consult a healthcare professional if you notice any persistent or unusual changes during pregnancy, especially if they may be linked to symptoms of gestational diabetes. While many symptoms can be mild or easily overlooked, signs such as excessive thirst, frequent urination, fatigue, or blurred vision should not be ignored. Early screening is typically done between 24 and 28 weeks, but if you have risk factors or notice concerning symptoms earlier, seeking medical advice without delay can help ensure timely diagnosis and proper management for a healthy pregnancy.

Frequently asked questions

1. What were your first signs of gestational diabetes?

Early symptoms of gestational diabetes may include increased thirst, frequent urination, fatigue, or blurred vision, though many women may not notice any symptoms at all.

2. How can you prevent gestational diabetes?

While it cannot always be prevented, maintaining a healthy diet, staying physically active, and managing weight before and during pregnancy can help reduce the risk.

3. How worrying is gestational diabetes?

Gestational diabetes can be managed effectively with proper care and monitoring, and most women go on to have healthy pregnancies and deliveries.

4. What is the cause of gestational diabetes?

It is mainly caused by hormonal changes during pregnancy that lead to insulin resistance, making it harder for the body to regulate blood sugar levels.