Understanding Gestational Diabetes

Feb 21, 2025

You’ve heard about morning sickness, mood swings, and weird cravings, but what about gestational diabetes? It is a type of diabetes that can occur in the second or third trimester.1 Understanding it and working with your healthcare provider to manage it can help you stay healthy and help ensure the best outcome for both you and your baby. Rest assured, you’ll find helpful information in this article to reference if you need to.

This guide is for informational purposes only. Always consult your healthcare provider for advice, or if you have any questions or concerns.

What is it?

Gestational diabetes develops during pregnancy when your body can’t produce enough insulin, resulting in high blood sugar. It affects about 3% to 20% of pregnant women, depending on risk factors.3 Most women with gestational diabetes did not have diabetes before pregnancy, and the diabetes usually goes away after birth.1

How does mom know if she has it?

Fortunately, pregnant women are offered a blood glucose screening test between 24 and 28 weeks of pregnancy.3 This test, known as a "glucose challenge," is used to evaluate how your body is handling sugar levels.3 If other risk factors are present, such as obesity, the test may be offered earlier and then repeated.

Getting a blood glucose screening is a great way to keep an eye on your health and prevent further complications. If you do have gestational diabetes, you can manage it by working closely with your healthcare provider to keep your blood sugar levels in a healthy range.3

What does this mean for mom and baby?

The good news is that with proper treatment and lifestyle changes, most women can manage gestational diabetes and reduce risks. If untreated, gestational diabetes can lead to complications for you and your baby. Speak to your healthcare professional to learn more.

Remember, there are excellent treatments for gestational diabetes. Working closely with a healthcare professional helps most women with gestational diabetes have normal deliveries and healthy babies.3

How to prevent it?

Here are three things you can do:

  1. Maintain a healthy pregnancy weight: Work with your healthcare professional to manage your pregnancy weight gain within recommended guidelines.2
  2. Stay active: Low-impact activities (think walking, swimming, or yoga) can help manage pregnancy weight gain and provide other benefits for you and your baby.2
  3. Routine checkups: Regular doctor visits help monitor both your health and your baby’s. Most women will also undergo routine screening to test for gestational diabetes at around 24 to 28 weeks.2 This is a great time to ask any questions you may have.

Top takeaways

You can take steps to reduce the risks of developing gestational diabetes, but if you are diagnosed, it is manageable with the right care. By eating a healthy diet, staying active, managing your pregnancy weight gain, and working closely with your healthcare team, most women continue to have a healthy pregnancy and baby. Consult your doctor for advice and support every step of the way.

References
1. Diabetes Canada. Gestational diabetes. Accessed January 2025. https://www.diabetes.ca/about-diabetes/gestational
2 HealthLink BC. Gestational diabetes. Updated June 2023. Accessed January 2025. https://www.healthlinkbc.ca/pregnancy-parenting/pregnancy/risks-and-complications-during-pregnancy/gestational-diabetes-1
3. Society of Obstetricians and Gynaecologists of Canada. Pregnancy Info. Glucose testing – screening for gestational diabetes. Accessed January 2025. https://www.pregnancyinfo.ca/your-pregnancy/routine-tests/glucose-testing/