Insulin pumps and glucose monitors: reporting safety concerns

Last Updated: Tuesday, 13 October 2026

Insulin pumps deliver insulin. Continuous glucose monitors (CGMs), including glucose sensors, help you track your glucose levels.

The MHRA, the UK medicines and medical devices regulator, asks users to report suspected equipment problems through the Yellow Card scheme. Reports help identify safety issues and protect other users.

What should you do if something goes wrong?

• Follow your diabetes team’s backup plan if you think your device is not working properly. Use an alternative way to check glucose or deliver insulin, as instructed.
• Keep backup equipment available and make sure you know how to use it.
• Seek medical advice without delay if the problem has affected your health. Do not wait for a replacement device.
• Contact the manufacturer about the fault.
• Also report the safety concern to the MHRA Yellow Card scheme, even if you have already told the manufacturer.

Do not simply stop insulin when a pump fails: you need an alternative insulin plan.

Want to discuss your treatment?

Contact your GP practice to book a medication review with a clinician. For equipment problems or help with your backup plan, contact your diabetes team.

Read the full MHRA guidance.