If you rely on a continuous glucose monitor (CGM) to manage your diabetes, you know how much these devices improve your daily life. They offer real-time glucose readings, helping you maintain better control over your blood sugar levels without the hassle of constant finger pricks. But what happens when you want to go swimming? Can you swim with a continuous glucose monitor? The answer might surprise you—and it’s more nuanced than a simple yes or no.
Let’s dive in and explore the compatibility of swimming with CGMs, the precautions to take, and how to enjoy water activities without compromising your health or device functionality.
Understanding Continuous Glucose Monitors
A continuous glucose monitor (CGM) is a wearable device that tracks glucose levels throughout the day and night. CGMs consist of three main components:
- Sensor: A small, thin filament inserted under the skin that measures glucose levels in the interstitial fluid.
- Transmitter: Attached to the sensor, this sends glucose readings to a compatible device, such as a smartphone or receiver.
- Receiver or App: Displays real-time glucose data.
These devices are invaluable for people with diabetes because they provide trends and alerts, making it easier to prevent hypoglycemia or hyperglycemia.
Are CGMs Waterproof?
One of the first things to consider when asking, “Can you swim with a continuous glucose monitor?” is whether the device is waterproof or merely water-resistant. Here’s what you need to know:
- Waterproof: These devices can be fully submerged in water for a certain depth and time without being damaged.
- Water-resistant: These devices can handle exposure to water, such as splashes or brief immersion, but are not designed for prolonged submersion.
Most CGMs on the market today are water-resistant, meaning they can tolerate everyday activities like showering, sweating, or getting caught in the rain. However, swimming—especially for extended periods—requires extra caution.
Manufacturer Guidelines for Popular CGMs
Here’s a breakdown of the swimming capabilities of some of the most commonly used CGMs:
1. Freestyle Libre 3
The Freestyle Libre 3 is water-resistant, rated IPX8. It can be submerged in water up to 4 feet (1.2 meters) for 30 minutes, making it suitable for light swimming or quick dips. However, prolonged exposure to chlorinated or salty water may weaken the adhesive.
2. Freestyle Libre 2
The Freestyle Libre 2 has a similar IPX8 water resistance rating, allowing submersion in water up to 3.2 feet (1 meter) for 30 minutes. Like the Libre 3, it’s ideal for short periods in the water but may require additional adhesive support during extended swims.
3. Dexcom G7
The Dexcom G7 is water-resistant with an IP68 rating, offering even greater water protection than its predecessors. It can withstand submersion up to 8 feet (2.4 meters) for 24 hours, making it highly suitable for swimming activities. Still, be mindful of adhesive longevity, especially in chlorinated or salty environments.
4. Dexcom G6
The Dexcom G6 is water-resistant, rated IPX8. It can be submerged in water up to 8 feet (2.4 meters) for 24 hours, similar to the G7. While it holds up well during swimming, adhesive patches are recommended for better security during extended water exposure.
Swimming with a CGM: Practical Considerations
Swimming with a continuous glucose monitor involves more than just understanding its waterproof rating. Here are some key factors to consider:
1. Water Type: Chlorine, Salt, and Freshwater
- Chlorine (found in pools) can weaken the adhesive holding the CGM in place.
- Saltwater (from the ocean) may corrode some parts of the device and dry out the adhesive faster.
- Freshwater is generally gentler, but prolonged exposure still risks loosening the adhesive or disrupting sensor readings.
2. Duration of Swimming
Even if your CGM is rated for water exposure, prolonged swimming sessions may test its limits. For instance, a Dexcom G6 can be submerged for 24 hours, but adhesive wear and tear can begin much earlier.
3. Water Temperature
Extreme water temperatures—very hot or very cold—can affect your CGM’s performance. Cold water might slow glucose readings, while hot water could loosen the adhesive.
Tips for Swimming with a CGM
To make the most of your swimming experience while wearing a CGM, follow these practical tips:
1. Use Adhesive Overlays
Many CGM users rely on adhesive patches or overlays to keep their devices secure in water. There are popular brands that offer waterproof adhesive solutions specifically designed for CGMs.
2. Apply the Sensor on Strategic Areas
Choosing the right placement for your CGM can reduce the chances of it being knocked off or loosened. Avoid high-movement areas like the waist or areas that rub against swimwear straps.
3. Check for Compatibility with Water Activities
Certain water activities, such as diving or high-speed watersports, may exert more force on the device or adhesive. Stick to gentler swimming if you’re unsure.
4. Monitor Adhesion After Swimming
After swimming, check your CGM to ensure it’s still firmly attached. If it feels loose, replace the adhesive as soon as possible to avoid losing the sensor.
5. Keep a Backup Plan
Always carry a spare sensor or adhesive patches if you plan on swimming regularly. Accidents happen, and having a backup ensures you won’t be caught off guard.
Alternative Options for Swimming
If you’re concerned about swimming with your CGM, there are alternative ways to manage your glucose levels during water activities:
- Waterproof Cases: Some companies produce waterproof pouches or cases for CGMs. These add an extra layer of protection against water damage.
- Temporary Removal: If your CGM isn’t suitable for swimming, you can remove it temporarily (with your healthcare provider’s guidance) and use traditional glucose testing methods during your swim.
- Swim-Friendly Technology: Innovations like waterproof smartwatches or fitness trackers with glucose monitoring capabilities may complement your CGM.
Final Thoughts
So, can you swim with a continuous glucose monitor? The answer largely depends on the specific CGM you’re using and how you prepare for water exposure. Most modern CGMs are water-resistant enough to handle light swimming, but prolonged exposure, chlorinated water, or adhesive failure can pose challenges.
By taking precautions—like using waterproof adhesives, choosing strategic placement, and monitoring your device after swimming—you can confidently enjoy your time in the water while keeping an eye on your glucose levels.
The advancements in CGM technology are making it easier than ever for people with diabetes to lead active, unrestricted lives. So go ahead—dive in and enjoy your swim, knowing you’re well-equipped to manage your health both in and out of the water!
How Aptiva Medical Can Help You
At Aptiva Medical, we understand the importance of staying active and managing your diabetes with confidence. That’s why we offer a wide range of solutions to help you get the most out of your continuous glucose monitor (CGM)—whether you’re swimming, exercising, or simply navigating daily life.
From high-quality adhesive patches that keep your CGM secure in water to expert advice on choosing the right device for your lifestyle, Aptiva Medical is here to support your health journey every step of the way.
Ready to take control of your diabetes management? Explore our products and services today, and discover how we can help you stay active without compromise. Explore our website now to learn more!
