The Case for Continuous Glucose Monitoring in Pregnancy

Original Article: https://www.medscape.com/viewarticle/case-continuous-glucose-monitoring-pregnancy-2026a10004we

The Main Point

New research supports the idea that continuous glucose monitoring (CGM) can improve how blood sugar is managed during pregnancy for people with diabetes or those who develop diabetes during pregnancy (gestational diabetes). CGM tracks glucose levels in real time throughout the day and night, offering more detailed information than traditional finger-stick tests. This allows providers and patients to see patterns of high and low glucose that might be missed otherwise, which can help guide better treatment decisions.

Why CGM May Be Helpful

Studies of CGM in pregnancy suggest several potential benefits. For example, CGM has been associated with better overall glucose control metrics like time in range (the amount of time blood sugar stays within target levels) and fewer episodes of dangerous high or low blood sugar. These improvements may translate into fewer complications for both the pregnant woman and the baby, such as lower rates of large-for-gestational-age infants or neonatal intensive care admissions in some studies.

CGM also allows more precise adjustments of insulin or diet because patients and clinicians can see glucose trends rather than relying on sporadic snapshots from finger sticks. This can help tailor care throughout the pregnancy period and respond quickly to changes.

What Experts Say

Clinicians and researchers increasingly view CGM as a valuable tool in pregnancy care, especially for those with preexisting type 1 or type 2 diabetes or for women who develop gestational diabetes. However, there is still work to do to define exactly when and for whom CGM use is most beneficial, and larger studies continue to refine recommendations.

Takeaway

Although guidelines are evolving, the evidence increasingly supports using CGM in pregnancy for people with diabetes or gestational diabetes.