With CGM technology, you can have the most accurate blood sugar numbers and patterns whenever you need them. A CGM uses a sensor on your body to measure your blood sugar in real time. The traditional fingerstick test takes time and effort to set up — and time is of the essence if you’re having a low (hypoglycemia) or high (hyperglycemia) blood sugar episode. Fingerstick tests also wear on your fingers over time. You might still need to do some fingerstick tests with a CGM, but not as many. CGMs provide accurate, around-the-clock assurance of knowing your blood sugar whenever you need to while you’re wearing one. And they’re more comfortable since you only have to stick yourself once every 1-2 weeks to place the sensor on your arm or belly. (The sensor has a small needle). A transmitter sends the data directly to your phone or a monitor. Some CGMs even allow for you to have the data sent to a family member or caregiver in case of an emergency.