If you or a family member uses FreeStyle Libre 3 or Libre 3 Plus sensors, please check your sensor immediately at Abbott Diabetes Care’s dedicated site: www.freestylecheck.com.
Why: Abbott has identified a serious problem affecting some FreeStyle Libre 3 / 3 Plus sensors — they may show falsely low glucose readings.
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As of November 2025, there have been 736 serious adverse events worldwide linked to this issue, and seven deaths possibly associated with the faulty sensors.
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Using an affected sensor could lead to incorrect insulin dosing (either too much or too little), risking serious medical emergencies.
What to do:
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Visit www.freestylecheck.com and use the “Confirm Sensor Serial Number” tool to see if your sensor is impacted.
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If your sensor is listed as affected — stop using it immediately. Dispose of it safely.
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Request a free replacement from Abbott.
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Until you receive a replacement, monitor glucose using a standard blood-glucose meter or the built-in meter in your Libre reader (if available).
Important Note: Some pharmacies and suppliers may not yet be aware of this correction, so even if you recently obtained sensors — whether new or unopened — you should independently check the serial number.
Please share this information — let friends, family, and anyone you know using FreeStyle Libre 3 / Libre 3 Plus sensors know about this urgent safety issue so they can check their devices without delay.
If you have questions or concerns, you can contact Abbott Diabetes Care at 1-833-815-4273 (U.S.), or visit their customer support page.