I knew after the first time I removed a G5 sensor that some day, when I removed a sensor, the sensor wire would end up remaining in my body. Tonight, sure enough, when helping my wife replace her sensor on her arm, the wire remained. It looked like a blonde hair sticking out at about a 45 degree angle. Because I’ve been keenly aware of this potential issue, it didn’t escape my notice. Pay attention that your sensor wire comes out with the sensor base; otherwise just pull it out separately.
If you have ever pulled out the wire from a used sensor body, you will see that it takes almost no force at all. And that’s why I’ve been on the lookout for this issue to crop up during sensor removals.