Traditional blood glucose meters and monitoring measure the blood glucose level at a specific moment in time. Traditional glucose monitoring also requires you to prick yourself numerous times per day to get a blood sugar reading at an exact time.
Continuous glucose monitors constantly monitor glucose levels every few minutes 24 hours per day, 7 days a week. They do not require numerous pricks per day as it is a thin catheter that is inserted into a certain body site, which is changed to a different site every 7-10 days. The continuous glucose monitoring systems can also notify the patient if your glucose levels are too high and/or too low. This immediate feedback enables you to take action more quickly, reducing the amount of time you may be either hypoglycemic (have low glucose values) or hyperglycemic (have high glucose values). Early hypoglycemic interventions could be the difference between life and death for some!