What Are the Symptoms of a High Blood Sugar Level?

By Staff WriterLast Updated Mar 28, 2020 5:16:29 PM ET

High blood glucose, elevated levels of sugar in the urine, frequent urination and increased thirst are symptoms of hyperglycemia, or high blood sugar, according to the American Diabetes Association. People with hyperglycemia either do not produce enough insulin, or their bodies do not process insulin properly.