Recognizing and preventing complications

Having type 1 diabetes (T1D) can increase your risk for additional health problems, particularly if blood glucose levels aren’t well-managed. The longer you have T1D, the higher your risk becomes for developing type 1 diabetes complications.

Fortunately, tools like continuous glucose monitors (CGMs) and automated insulin delivery (AID) systems are helping to reduce the risk of complications caused by prolonged high blood sugar. Annual checkups are also key to catching complications early and preventing them.

Here, we look at the most common type 1 diabetes complications and ways they can be prevented or reduced, as well as how Breakthrough T1D is working to improve health outcomes on all fronts.

Doctor discusses type 1 diabetes complications with a patient

Information and guidance


Cardiovascular disease (CVD) is a long-term complication of T1D. CVD includes coronary heart disease, cerebrovascular disease, and peripheral artery disease.


For people living with T1D, eye disease is a troubling reality, but early detection and timely treatment can reduce the risk of blindness by over 95 percent.



Nearly one out of three people with T1D develop kidney disease. Fortunately, most people with T1D and kidney disease don’t end up with kidney failure.