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What actually happens at airport security when you’re travelling with diabetes and wearing a CGM. Updated guidance for 2026 holidays.

Using a CGM in hot weather can bring extra challenges, including sweat, weaker adhesion, swimming issues and changing glucose trends. This practical guide covers how to keep sensors secure, protect performance and avoid common summer CGM problems.

FreeStyle Libre sensors can be worn in water but are not waterproof. The main risk when swimming with a CGM is the sensor coming loose due to adhesive weakening from water, heat and movement.