How to Keep Your CGM From Falling Off

How to Keep Your CGM From Falling Off

How to Keep Your CGM From Falling Off

If your continuous glucose monitor (CGM) keeps falling off, you’re not alone. Many people using Dexcom or FreeStyle Libre sensors experience peeling, lifting, or complete sensor loss before the wear time is up.

The good news is that there are simple, effective ways to keep your CGM securely in place.

Why does my CGM keep falling off?

CGMs can loosen or fall off for several reasons, including:

  • Sweat from exercise or hot weather

  • Water exposure from showers or swimming

  • Clothing rubbing against the sensor

  • Natural skin oils or lotion

  • Accidental pulling during sleep or daily activity

Once the edges start lifting, the sensor often comes off completely.

What doesn’t work very well

Some common fixes don’t last long, such as:

  • Regular medical tape

  • Pressing the adhesive back down

  • Avoiding workouts or water

  • Replacing sensors early

These solutions are usually temporary and can become frustrating and expensive.

The best way to keep your CGM on

Using a protective CGM patch (also called an overpatch) is one of the most effective solutions.

A protective patch helps by:

  • Reinforcing the original CGM adhesive

  • Preventing edges from lifting

  • Protecting the sensor from sweat and water

  • Reducing pulling from clothing and movement

Protective patches are especially helpful for active lifestyles, sports, swimming, and warm weather.

Tips to help your CGM stay on longer

1. Prepare your skin

  • Wash with soap and water

  • Dry completely

  • Avoid lotions or oils before application

2. Choose the right placement

Apply your CGM on a flat area that doesn’t rub against tight clothing or seams.

3. Apply firm pressure

Hold the CGM and protective patch in place for 30–60 seconds to activate the adhesive.

4. Be cautious during the first 24 hours

This is when the adhesive sets best. Avoid heavy sweating or long water exposure if possible.

Keeping your CGM secure during showers, swimming, and exercise

  • Use a water-resistant protective patch

  • Pat the area dry after water exposure

  • Reinforce lifted edges early

Many users find that a protective patch helps their CGM last the full wear period instead of coming off early.

Does this work for Dexcom and FreeStyle Libre?

Yes. Protective patches are commonly used with:

  • Dexcom G6 and Dexcom G7

  • FreeStyle Libre 2 and FreeStyle Libre 3

If your CGM has fallen off before, a protective patch can make a big difference.

Final thoughts

If your CGM keeps falling off, it’s a common issue with a simple solution. Proper skin prep, good placement, and a protective CGM patch can help keep your sensor secure, protected, and working as intended.

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