Dexcom Help Centre

Whether you're new to Dexcom or already using your CGM, our Help Centre helps you get started, fix issues, manage orders, and get support.

Login for faster help

Sign in to pre-fill your details, track requests, and get help faster.
  • Login to My Account

Setting up for the first time?

Follow simple, step-by-step guidance to get your sensor and app up and running.

Popular topics

Support categories

Device & App SupportProduct UsageClinical GuidanceGeneral InformationOrders & DeliveryAccounts & SubscriptionsG6 Transition
Other learning resources
Dexcom smart device compatibility icon

Check Smart Device Compatibility

Ensure your device works with the Dexcom app.
  • Check device
Customer support icon inside speech bubble

How to videos

Learn more about Dexcom CGM systems and how they work.
Dexcom downloads and user guides icon

Downloads and user guides

View our downloadable guides for all products.
Customer support icon inside speech bubble

Contact information

Can't resolve your issue? Contact Dexcom Support.
Dexcom, Dexcom Clarity, Dexcom Follow, Dexcom One, Dexcom Share, Share are trademark or registered trademarks in the U.S. and may be in other countries.

© 2026 Dexcom, Inc. All rights reserved.

GB flag

GB

Change region