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.

Members: 1538
Latest Activity: 4 hours ago


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Rich demos insertion of a G4 sensor- video

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Diabetes Forum

First Week with Dex G4

Started by LovetoHike 4 hours ago. 0 Replies

Survey - Is insurance covering your Dexcom device?

Started by mtulchin. Last reply by ANTONIA RETMAN 10 hours ago. 103 Replies

Blacking out

Started by Aussie. Last reply by Aussie yesterday. 7 Replies

ANY news on dexcom/Animas Vibe approval?

Started by Dan W.. Last reply by jjm335 on Thursday. 9 Replies

Charging Dexcom in car

Started by Andrea555. Last reply by SueSue on Wednesday. 3 Replies

Skin tac wipes

Started by dishers. Last reply by Suzan on Wednesday. 35 Replies

G4 arriving tomorrow! :)

Started by LovetoHike. Last reply by Biomuse on Tuesday. 13 Replies

Remove Workaround?

Started by Tripp Lewis. Last reply by Tripp Lewis Aug 18. 2 Replies

contemplating getting a cgm again

Started by ANTONIA RETMAN. Last reply by Bambi Aug 16. 11 Replies

CGM insurance

Started by Bailey. Last reply by dishers Aug 9. 12 Replies

Dexcom DM3 Software

Started by Mike W. Last reply by mohe0001 Aug 3. 16 Replies

New to Dexcom G4 and travel

Started by cbaer. Last reply by Brad Ringer Jul 30. 5 Replies

First sensor failure

Started by Linny. Last reply by 2hobbit1 Jul 30. 14 Replies

Comment Wall


You need to be a member of Dexcom Users to add comments!

Comment by Rodger 5 hours ago

I agree with the others regarding Dexcom's accuracy. See PierreV's comment and link below to a study that confirms it. The only reason to consider the competition is that you can't live with two small devices, and want just one. And now that the Dexcom CGMSs are being built into some insulin pumps, that constraint will soon be a non-issue.

Comment by Clare 10 hours ago

I wouldn't waste my time trying the only other CGM available in the US which is a Medtronic device. The G4 beats it in every category hands down.

Comment by Michael Watson yesterday

I've used the G4 for over a year, and I really can't imagine not having it. I accidentally left the receiver at home when I left for San Diego Comic Con this year, realized my mistake on the plane, and got a friend to FedEx it to me rather than not have it for five days. Totally worth the minimal hassles.

Comment by PierreV yesterday

lh 378, Here's a very recent accuracy test

it correlates well with previous tests. At this point, the G4 is the most accurate of the widely available CGMs (and I think the most accurate on the US market anyway)

Comment by Hummingbird yesterday
Ih378 there is an alert you can set if you are out of rang. It will sound if you get to far away. If you can try to get in the habit of clipping the transmitter on to your waist band or stick it in your pocket. I find the dexcom to be a life changing product. Good luck
Comment by lh378 yesterday

Thus far, I'm liking the DexCom G4 that I have on trial. I've had it since thursday 8/27. As I've learned from this wonderful group, try it. So should I ask to try other CGM's? The only "complaint" or annoyance that I have may be that if I forget to have the transmitter and receiver close by, the out of range symbol appears and some information is lost. Is there an audible alert if transmitter and receiver are not communicating?

Comment by Hummingbird yesterday
Alyssa - just wondering how you are doing with the dexcom. I have only had my dexcom for 5 weeks but love it. Hope you are have success with it
Comment by Belinda on Friday
I use Mefilm, it's like Tegaderm. I use Cavilon as a barrier spray.

I don't uncover the transmitter. My sensors generally last 3 weeks (I remove them on day 21). All the errors have occurred when it wasn't covered. People have asked Dexcom to explain their advice & got nothing.

As for the abdomen: it's nowhere near as good as my arms & legs. It bends, wriggles & moves more than my bicep or thigh!
Comment by bort269 on Friday

This is what I use (make sure to trim the edges so that they are round) super cheap Hypafix tape with liquid skinTac:

Comment by Apulo on Friday

I use a 4" Tegaderm patch. I carefully cut a square out of the middle to let the transmitter through and put it over the adhesive patch letting the rest poke through.


Members (1538)




From the Diabetes Hands Foundation blog...

Diabetes Among Hispanics: We’re not all the same

US Hispanics are often portrayed in the press as a single, monolithic group. But anyone who has spent any time in San Francisco’s Mission District or the Bronx can tell you, we’re not all the same. Now we’re finding out Read on! →

Diabetes entre los hispanos: no somos todos iguales

Traducido por Mila Ferrer.    A menudo los Hispanos en Estados Unidos son retratados en la prensa como un solo grupo, monolítico. Pero cualquiera que haya pasado algún tiempo en el  Mission District de San Francisco o el Bronx se Read on! →

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