CGM: Continuous 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 A CGM is a small sensor. You can wear it on most places on your body. It goes on your skin. CGM measures your blood sugar all the time. You can check your blood sugars on your phone or your CGM machine The good things about CGM are You have blood sugars from the whole day. You can do less finger pricks. You can have alarms.They tell you when your sugars are high or low. You can share your results with other people. The bad things about CGM are You must wear a sensor.It can feel itchy or annoying It gives you a lot of information. You still have to do some finger prick checks. You may use CGM because you cannot feel low blood sugars. the CGM gives you an alarm. you do not like doing finger pricks. CGM gives you a lot of information. Back Diabetes Home Next This is general information. Talk to your doctor for information made for you.