Lawsuits Filed Over Dexcom G7 Monitor Failures
New litigation alleges that the continuous glucose monitor failed to alert users to dangerous blood sugar levels.
Updated on Oct. 2, 2026 in Diabetes
Morgan & Morgan has filed two additional lawsuits against Dexcom regarding performance failures of the G7 continuous glucose monitoring system. These actions bring the total number of lawsuits against the manufacturer to 11, including several involving minors and fatalities.
Why it matters
The legal challenges highlight concerns regarding the reliability of glucose-monitoring technology in managing critical blood sugar events. Patients and caregivers should review device performance with their care team, especially when relying on alerts for immediate health management.
The litigation includes 11 cases filed across six states, with four lawsuits alleging user deaths and three involving pediatric patients. These figures are based on court records detailing alleged failures to detect and alert users of abnormal blood glucose levels.
The players
Dexcom
A medical device company that develops continuous glucose monitoring systems used by patients to manage diabetes.
Morgan & Morgan
A national law firm currently representing plaintiffs in litigation against device manufacturers.
The details
The lawsuits allege that the Dexcom G7 system failed to report accurate blood glucose data and did not alert users to dangerously low levels of blood sugar. Plaintiffs contend these device errors led to severe medical emergencies, including diabetic ketoacidosis and seizures. The manufacturer is currently working on a successor, the Dexcom G8 device.
Timeline
August 2025: A 10-year-old girl in Tennessee was hospitalized for seizures linked to device failure.
November 2025: A 7-year-old girl in California was hospitalized for diabetic ketoacidosis.
October 2, 2026: The latest lawsuit filings were reported.
Health Landscape
The Dexcom G7 continuous glucose monitoring system represents a major tool for real-time glycemic control for millions of patients. These lawsuits introduce questions about the safety profile of the current generation of monitoring hardware compared to historical performance standards.
If you or a family member use a G7 device, ensure your blood sugar management plan includes manual testing if readings feel inconsistent. Discuss any device performance concerns or alarm failures with your endocrinologist to determine if your monitoring setup remains appropriate.
The takeaway
Patients should always have a backup plan for glucose monitoring when relying on automated devices. Keep your care team updated if you notice recurring discrepancies between your continuous monitor and finger-stick readings.
Further reading
For more on the current standard of care and management tools, visit our Diabetes section.
Source note: This article includes information reported by MDDI Online.
