Diabetes Complications

If it is not controlled, diabetes can cause a host of complications that can affect nearly every organ in the body. Diabetes complications include:

Heart Disease

Heart disease is one of the most common diabetes complications. In office visits, your doctor may perform various tests to check for heart disease and help you prevent any serious heart-related problems. At every visit, your healthcare provider will check your blood pressure. Your cholesterol level and triglycerides may be checked at your first visit. A baseline EKG should also be obtained as part of a complete medical record. Learn more about personal risk factors you have for heart disease, such as a family history or whether you smoke, and work out a prevention plan that includes weight loss, regular exercise, and stress management, as well as keeping your blood pressure, cholesterol, and triglycerides at normal levels.


Signs and symptoms of stroke include sudden weakness on one side of the face or body; numbness in the face, arm, or leg; difficulty speaking; trouble seeing with both eyes; or dizziness. If you have any of these symptoms, see a doctor immediately. You may be referred to a neurologist or other stroke specialist. Read more about the warning signs of stroke and also be aware of ways to prevent this serious problem from happening to you.

Diabetic Nephropathy (Kidney Disease)

If you have diabetes, urine testing should be performed yearly to look for diabetic nephropathy -- kidney disease. A baseline creatinine blood test should also be done to determine your kidney function. Your healthcare provider will also check your blood pressure regularly, because control of high blood pressure is essential in slowing kidney disease. Read about other symptoms of kidney disease in this health topic, such as persistent leg or feet swelling. Find out when to call your doctor to prevent serious problems.

Diabetic Neuropathy (Nerve Damage)

Over time, diabetes can cause nerve damage that produces symptoms of numbness, burning, or pain. If your skin becomes numb, you may not notice small wounds that could grow to become bigger health threats. Check your feet and hands daily for redness, calluses, cracks, or skin breakdown. If you notice any of these symptoms before your next scheduled visit, notify your health care provider immediately.

Diabetic Retinopathy

To protect your vision, all people with diabetes should see an ophthalmologist (an eye doctor) at least yearly. As part of the eye exam, the doctor will dilate your eyes so that they can see the back of the eye (retina) and determine if the diabetes is causing damage. In people with type 1 diabetes, these annual exams should start within three to five years of diabetes once the patient is age 10 or older. People with type 2 diabetes should have their first eye exam once they are diagnosed. Those with eye complications may need to see their ophthalmologist more frequently. Women with diabetes who become pregnant should have a comprehensive eye exam during the first trimester and close follow-up with an eye doctor during their pregnancy. (This recommendation does not apply to women who develop gestational diabetes.)


Diabetes increases your risk of gastroparesis. With gastroparesis, the nerves to the stomach are damaged and stop working properly. This causes the stomach to take too long to empty its contents and makes it difficult to manage blood glucose levels. Sometimes, changing your diet can help. There are some medications and treatments for gastroparesis.

Talk to your doctor about ways to prevent diabetes complications. Ask for information on early warning signs so you can seek treatment when it is most effective.

Erectile Dysfunction

Diabetes increases the chance of developing erectile dysfunction, or impotence. For some men, adopting a healthier lifestyle, such as quitting smoking, exercising regularly, and reducing stress, may be all that is needed to resolve erectile dysfunction. In this health topic, you'll also learn why it's important to talk to your health care provider about your erectile dysfunction, as your doctor can recommend other remedies -- including medications, a vacuum constriction device (VCD), and other erectile dysfunction aids -- that can help.

Skin Problems

As many as a third of people with diabetes will have a skin condition related to their disease at some time in their lives. High levels of glucose in the blood provide an excellent breeding ground for bacteria and fungi and can reduce the body's ability to heal itself. Fortunately, most skin conditions can be prevented and successfully treated if caught early. If your skin is not cared for properly with type 2 diabetes, a minor skin condition can turn into a serious problem with potentially severe consequences.


Type 2 diabetes slows down your body's ability to fight infection. High blood glucose leads to high levels of sugar in your body's tissues. When this happens, bacteria grow and infections can develop more quickly. Common sites of infection are your bladder, kidneys, vagina, gums, feet, and skin. Early treatment of infections can prevent more serious complications.

Dental Problems in Diabetes

People with diabetes face a higher than normal risk of serious dental and oral health problems. The more uncontrolled the blood sugar, the more likely dental and oral health problems will arise. This is because uncontrolled diabetes impairs white blood cells, which are the body's main defense against infections that can occur in the mouth. Whether you have diabetes or not, be sure brush, floss and rinse with antiseptic mouthwash daily. See your dentist for regular cleanings and checkups to prevent serious dental problems.

WebMD Medical Reference Reviewed by Minesh Khatri, MD on February 15, 2020


SOURCE: American Diabetes Association.

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