HbA1c test: your average blood sugar over 3 months

Your blood sugar shifts gradually with your lifestyle, your hormones and your age. Around menopause, with PCOS or after a pregnancy, for example, your body can start responding to sugar differently, often without you noticing anything at first.

Prediabetes rarely causes clear symptoms early on. That is exactly why an HbA1c test can be valuable: it makes visible what you cannot feel yourself, so you do not have to guess and can talk to your GP in good time if needed.

This test can be useful if you are curious about your blood sugar or about your risk of prediabetes. Think of people with symptoms such as ongoing thirst, frequent tiredness or unexplained weight loss, or those with diabetes in the family.

For women, blood sugar can also connect with hormonal themes. With PCOS or after a pregnancy with raised blood sugar, it can be reassuring to check your values from time to time. You decide when that feels meaningful for you.

This test looks at two values in your blood:

• Glucose (Fasting): your blood sugar at the moment of the draw, after a period of fasting.
• HbA1c (Glycated Hemoglobin): your average blood sugar over roughly the past two to three months.

That way you can see whether a single reading fits your average over recent months.

Your HbA1c and fasting glucose can together give an impression of how your body handles sugar. Values within the reference range usually fit with steady blood sugar.

Raised values can point to prediabetes or diabetes, but a blood test does not establish that on its own. It is a starting point you can explore further with your GP.

This test requires a small blood draw at a certified lab. In the Netherlands you can choose from 650+ blood draw locations.

After ordering, you pick a location near you and schedule a moment that suits you. The draw itself usually takes only a few minutes, and you do not need a referral from your GP.

An HbA1c test can be valuable at different moments, for example:

• when you have symptoms you connect to your blood sugar
• when diabetes runs in your family and you are curious about your values
• when you want to keep an eye on your blood sugar with PCOS
• when you simply want to know where you stand

Some people choose to test now and then to stay informed. What suits you is up to you.

Your result shows your glucose and HbA1c values together with a reference range and a short explanation. What counts as usual can vary slightly by laboratory.

HbA1c reflects an average over a longer period, while glucose shows the situation at that moment. A value above the range can point to raised blood sugar, but on its own says nothing definitive. The doctor helps you place the numbers in the right context.

Your result is usually available online within a few working days. Each value is shown clearly with a reference range and an explanation, so you understand what you see.

Every blood test result includes a professional assessment from a BIG-registered doctor. For treatment decisions, discuss your results with your GP.