Where can I insert my Dexcom G7 sensor?

Dexcom G7 sensors may be inserted on the back of the upper arm (ages 2 years and older) or the upper buttocks (ages 2-6 years old).

Dexcom G7 15 Day sensors may be inserted on the back of the upper arm (ages 18 years and older).

Our research shows that back of the upper arm wear results in optimal performance¹. Sensor placement is important, and you should change your insertion site with each sensor. Using the same site too often might not allow the skin to heal, causing scarring or skin irritation.

Be sure to use the overpatch included with your G7 sensor; this will help ensure your sensor will remain in place for the duration of the wear session.

Follow the insertion instructions carefully. Extra care may help you keep your sensor on for the entire sensor session.

1 Welsh JB, et al. J Diabetes Sci Technol. 2024;18(1):143-7.

Choose a site:

At least 3 inches (8 centimeters) from any insulin pump infusion set or injection site
Away from waistbands, scarring, tattoos, irritation, and bones
Unlikely to be bumped, pushed, or laid on while sleeping

Follow the Dexcom G7 or Dexcom G7 15 Day product instructions. If you have any questions regarding sensor insertion, placement, or otherwise, please refer to the Dexcom G7 or Dexcom G7 15 Day product instructions for additional information.

Dexcom G7

Dexcom G7 15 Day

Applying your sensor

Applying the overpatch

MAT-1043

Why is G7 only indicated for arm wear when G6 could be worn on the abdomen?

The Dexcom G7 CGM sensors are indicated for use on arms because, during testing, users who wore it there had optimal system performance.

I am having a hard time with sensor insertion and overpatch application on the back of the arm.

Ask a friend, family member, or healthcare provider to help insert your first Dexcom G7 sensor and overpatch.

Why can’t I press the applicator button when inserting Dexcom G7?

Press the applicator more firmly against your skin before pushing the button. You can’t press the applicator button until you push the applicator so firmly against your skin that the clear safety guard pushes in.