Getting Started

What happens if my sensor insertion causes bleeding?

Last Updated · September 28, 2021

In order for the Dexcom ONE insertion needle to reach the interstitial fluid, it must penetrate the dermis layer of the skin, which has blood vessels scattered throughout. Penetration of these blood vessels causes bleeding if the needle pierces through them. If you experience bleeding, please visit the contact us section of our website to contact the Dexcom support team.

5-step learning journey

Discover education resources, organised in a 5-step journey, to learn key information about your Dexcom ONE CGM system, from getting started, your first 10 days, to using Dexcom ONE in the long run.

Step 1: The basics of CGM
Step 2: Getting started
Step 3: Your first 10 days
Step 4: Using Dexcom ONE in the long run
Step 5: Understand your Diabetes trends