Can I Change My Sensor Early?

Can I change my sensor before the scheduled end of the session?

Yes, you can end your sensor session early and start a new one at any time. All Dexcom CGM systems allow you to manually stop your current sensor session before the full wear period is complete.

How do I end my sensor session early?

Click the links below for product specific instructions on how to remove your sensor session early.
Dexcom G7, Dexcom ONE and Dexcom ONE+

What happens if I end my session early?

  • You will stop receiving glucose readings and alerts until you start a new sensor session.
  • You must insert a new sensor to resume monitoring.
  • You cannot restart a session on a used sensor.
  • You may not get the full wear time from your sensor if you end it early.
  • If you end your session early, you will need a new sensor to continue monitoring.

How do I remove the sensor?

After your sensor session ends, peel off the patch like a bandage.
To make it easier and to avoid irritating your skin, try these tips:
  • Loosen edge and soak patch in body oil, like baby oil or an adhesive remover for skin (see product instructions before using).
  • Use adhesive removal wipes for skin, rubbing exposed skin as you peel back the patch.
  • Try different pulling techniques:
  • Pull off the patch slowly, folding it over itself, in the same direction of hair growth.
  • Stretch loosened edge and push your fingers under the patch to pull it off skin.

Important Notes

  • For all Dexcom systems, you can only have one active sensor session at a time.
  • Do not reuse sensor codes or attempt to restart a used sensor.
  • If you experience discomfort, adhesive issues, or sensor errors, early replacement is recommended.

Was this article helpful?

MAT-12352

MAT-12352

© 2026 Dexcom, Inc. All rights reserved.

GB flag

GB

Change region