Dexcom Users

For users of a Dexcom Continuous Glucose Monitoring ("CGM") device

Just as a reminder with the recent release of the new Dexcom G4 to the US market--it is NOT okay to post about previous models or older sensors as being 'for sale' on this site.

It is a violation of the Terms of Use because it is a prescription device, and any such efforts will unfortunately be removed.

We encourage you to donate supplies to non-profits such as the Charles Ray III Diabetes Association (, which accepts unexpired glucometer and insulin pump supplies, or alternatively you may talk to your physician's office or other local medical group to discuss donating them to those in need of assistance.

Thank you all for kindly refraining from this activity.

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Latest Activity: 3 hours ago


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Rich demos insertion of a G4 sensor- video

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Diabetes Forum

Dexcom G4 w Animas Vibe Pump Impressions?

Started by Fred Goldberg. Last reply by jjm335 3 hours ago. 6 Replies

Dexcom G4 transmitter lifespan

Started by Jaybyrd. Last reply by 2hobbit1 on Monday. 7 Replies

A Little Unscientific G4 Research

Started by Elizabeth. Last reply by bort269 on Friday. 71 Replies

Sensor placement

Started by Dave. Last reply by SiggyB Apr 17. 45 Replies

Adhesive allergy

Started by duckatect. Last reply by Melissa M. Apr 17. 7 Replies

OUCH!!!! Very painful insertion just now

Started by Gayle Kodimer Mckenna. Last reply by Bambi Apr 15. 25 Replies

Blood on Sensor Insertion

Started by markeeezy. Last reply by Dondi Apr 14. 6 Replies

? About ???

Started by dishers. Last reply by Joern Apr 13. 9 Replies


Started by Aussie. Last reply by Ellie Apr 11. 14 Replies

delivery times?

Started by dishers. Last reply by dishers Apr 8. 2 Replies

Comment Wall


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Comment by lisa c on April 24, 2011 at 5:59pm
I get itching and irritation often. Aloe, tea tree oil, lavender sometimes help. Do we know if Dex has made changes in adhesive or is this just a guess?
Comment by Helmut on April 24, 2011 at 5:53pm
Lorraine, the same thing happened to me. My skin was very forgiving and then started to rebel. My skin endured abuse until it had enough. Then my skin showed irritation even when I did everything right. My skin seems to have a long memory, for the good and for the bad.
Comment by Lorraine on April 24, 2011 at 5:44pm
Isaac - Are the spots irritating to you at all? My son, Caleb used DexCom for about 6 months without any skin irritation and then seemingly out of nowhere he developed a rash an itchiness that became unbearable at times. It took a while, but we've come up with a method that has counteracted the problem.
Comment by Helmut on April 24, 2011 at 5:04pm
Isaac, I use Uni-Solve. I have to wipe a couple of times over the spot to remove the goo.
Comment by Isaac on April 24, 2011 at 4:55pm
I think Dex has changed the glue they use on the sensor.
The last couple of months, I get an Oval remaining spot where the sensor used to be. I have six of them now. No way of getting rid of it.

Before, this never happened.

They must have changed the formula.

Anyone knows how to remove these spots? Soap does not help.
Comment by Michele on April 14, 2011 at 12:32pm
I'm starting with the Dexcom on Monday. Wish me luck!
Comment by Kelly WPA on April 14, 2011 at 11:34am
Mine actually stayed pretty close everytime it came back. I changed my sensor today also - I hope i get another 3 weeks!
Comment by onesaint on April 14, 2011 at 10:12am
Yesterday my sensor went ???. In and out all day. It came back in the evening, but only to constantly tell me I was much lower than I actually was. 4am -- 50mg/dl, 6am 47mg/dl, 6:30am, 55, etc. Finally I shut it off and later this morning changed the sensor.

When I pulled the probe out, it looked like it had been bent backwards. Odd.
Comment by Kelly WPA on April 14, 2011 at 7:40am
Rebecca, yesterday was the first day for this one that I had the $$$ more than once and it was not working half the time. The other days it did not do it for days after it came back.
Comment by Rebecca on April 14, 2011 at 7:18am
Kelly, they do come back to life but eventually you start seeing ??? as often as you see numbers and so the sensor's not doing you much good! I usually get frustrated anytime I have to deal with ??? for more than 4 hours in a day. Fortunately for me the adhesive is usually pretty much gone by that point anyway.

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