Libre: Flash Glucose Monitoring Diabetes Home Blood Sugar What are blood sugars? Why your blood sugars change When to check your blood sugars What do your blood sugars mean? Low blood sugar What is low blood sugar What does low blood sugar feel like? You think you have low blood sugar. What do you do? Why do you get low blood sugar? High blood sugar What is high blood sugar? Why do you get high blood sugar? What does high blood sugar feel like? What to do when you have high blood sugar You may need to go to the hospital when you have high blood sugar How to check your blood sugar How to use a blood sugar meter CGM Libre The Libre is a way to check your blood sugars. You wear a small sensor on your arm. It is like CGM. You scan the sensor with a reader or phone. It tells you your blood sugars. You must scan every 8 hours. The good things about a Libre are You have blood sugars from the whole day. You can have alarms.They tell you when your sugars are high or low. You can do less finger pricks. You can share your results with other people. The bad things about Libre are You must wear a sensor.It can feel itchy or annoying It gives you a lot of information. You must scan every 8 hours You lose information when you forget to scan. Like at night. You may use Libre because you cannot feel low blood sugars. The Libre gives you an alarm. you do not like doing finger pricks. Libre gives you a lot of information. Back Diabetes Home This is general information. Talk to your doctor for information made for you.