A small sensor that records glucose patterns through the day.
Why it matters for PCOS
A continuous glucose monitor is a small sensor worn on the skin that records glucose levels continuously, day and night, so you see patterns rather than a single reading. Insulin resistance is common in PCOS, and a CGM is sometimes used to see how one person’s meals, sleep, stress, exercise, and fasting affect their glucose patterns.
A CGM is not a required test for PCOS and it does not diagnose the condition. For most women, basics like cycle history, waist size, a blood glucose test, and HbA1c come first. Readings need to be interpreted in context because many everyday factors affect them, so talk to a doctor or pharmacist before using one, especially if you take diabetes medicine or are pregnant.
This glossary is education, not diagnosis. For your own situation, ask a doctor or pharmacist.