Early symptoms of diabetes, especially type 2 diabetes, can be subtle or seemingly harmless — if you have symptoms at all. Over time, however, you may develop diabetes complications, even if you haven't had diabetes symptoms.
In the United States alone, nearly 7 million people have undiagnosed diabetes, according to the American Diabetes Association. But you don't need to become a statistic. Understanding possible diabetes symptoms can lead to early diagnosis and treatment — and a lifetime of better health. If you're experiencing any of the following diabetes signs and symptoms, see your doctor.
Excessive thirst and increased urination
When you have diabetes, excess sugar (glucose) builds up in your blood. Your kidneys are forced to work overtime to filter and absorb the excess sugar. If your kidneys can't keep up, the excess sugar is excreted into your urine along with fluids drawn from your tissues. This triggers more frequent urination, which may leave you dehydrated. As you drink more fluids to quench your thirst, you'll urinate even more
Fatigue
Weight loss
Blurred vision
Left untreated, diabetes can cause new blood vessels to form in your retina — the back part of your eye — and damage established vessels. For most people, these early changes do not cause vision problems. However, if these changes progress undetected, they can lead to vision loss and blindness.