Do I still need to prick my finger if I use a Continuous Glucose Monitor (CGM)?

While CGMs are incredibly accurate and have drastically reduced the need for routine finger pricks, they haven't entirely replaced them. CGMs measure interstitial fluid (the fluid between cells), which lags slightly behind actual blood glucose levels. You may still need to do a manual finger prick if your symptoms don't match the CGM reading, if the CGM requires manual calibration, or if your blood sugar is changing very rapidly (such as during intense exercise or right after treating a severe low).