
Millions of people around the world live with diabetes, a condition that affects how the body controls blood sugar. When blood sugar stays too high for a long time, it can damage the heart, kidneys, nerves, and eyes.
Because of this, many patients rely on medications to help keep their blood sugar at safe levels. In recent years, a newer group of drugs called SGLT2 inhibitors has become widely used because they lower blood sugar in a different way from older treatments.
Instead of helping the body use insulin better, these medicines cause the kidneys to remove extra sugar from the blood and pass it out through urine. For many patients, this method has worked well. Some studies have even shown that these drugs can help with weight loss and reduce the risk of heart problems in people with diabetes.
However, a new study from the U.S. Food and Drug Administration has raised concerns about a rare but very dangerous side effect linked to these medications.
The research found cases of a serious infection called Fournier gangrene in people taking SGLT2 inhibitors. This infection affects the skin and tissues around the genital and anal areas.
It spreads quickly and can destroy tissue, making it a medical emergency that requires immediate treatment, often including surgery and strong antibiotics. Although the infection is rare, it can be life‑threatening if not treated quickly.
FDA scientists reviewed patient records between 2013 and 2019 and identified 55 people who developed this infection while using SGLT2 inhibitors. The patients ranged in age from young adults to elderly individuals, and both men and women were affected.
Some people became ill just days after starting the medication, while others developed symptoms years later. Many of the patients also had other health problems related to diabetes, such as severe infections, kidney injury, or a dangerous condition called diabetic ketoacidosis, which made recovery more difficult.
To understand whether this risk was unique to the newer drugs, researchers compared these cases with reports linked to older diabetes medications such as metformin and insulin.
Over several decades, far fewer cases of this infection were associated with the older treatments. This difference suggests that the risk may be higher with SGLT2 inhibitors, although the infection remains uncommon overall.
Doctors are now being advised to watch patients carefully when starting these medicines, especially during the early weeks of treatment. Early detection is crucial because the infection can worsen rapidly.
Patients should also be aware of warning signs, including pain, swelling, redness, fever, or discomfort in the genital or anal area. Any unusual symptoms should be reported to a healthcare provider immediately.
It is important to note that these drugs still provide significant benefits for many people with diabetes. For some patients, they may improve blood sugar control and reduce complications. The key message from the study is not to stop treatment without medical advice, but to understand the potential risks and stay alert for symptoms.
All medications carry some level of risk, especially newer ones that have not been used for as long as traditional treatments.
Health experts emphasize that careful monitoring and open communication between patients and doctors can help ensure safe use. Ongoing research will continue to track the safety of SGLT2 inhibitors as more people take them over time.
This study highlights the importance of balancing the benefits and risks of any treatment. By staying informed and acting quickly if problems arise, patients and healthcare providers can work together to manage diabetes safely while reducing the chance of rare but serious complications.
If you care about diabetes, please read studies about 5 vitamins that may prevent complication in diabetes, and how to manage high blood pressure and diabetes with healthy foods.
For more health information, please see recent studies about vitamin D and type2 diabetes, and to people with type 2 diabetes, some fruits are better than others.
Copyright © 2026 Knowridge Science Report. All rights reserved.


