Intense exercise may cause your sensor to loosen due to sweat or movement of the sensor. If the sensor is becoming loose or if the sensor tip is coming out of your skin, you may get no readings or unreliable low readings. Remove and replace your sensor if it starts to loosen and follow the instructions to select an appropriate application site. Do not attempt to reinsert the sensor.
If your sensor becomes loose or falls off before the end of the 14-day wear period please complete the online sensor support request form or contact our Customer Care Team at 855-632-8658.
You can learn more about keeping your FreeStyle Libre 3 sensor in place by visiting our Sensor Adhesion Guide.