Diabetes

Diagnosis

The most common signs and symptoms of diabetes are excessive thirst and frequent urination. Depending on the type of diabetes, you might also experience constant hunger, weight changes, flu-like symptoms, blurred vision, tingling in hands and feet, and recurring infections. Doctors at Mayo Clinic will examine you and talk with you about your symptoms.

For type 1 and type 2 diabetes, tests may include the glycated hemoglobin (A1C) test or the fasting blood sugar test. For gestational diabetes, you'll likely be given the glucose challenge test, a modified version of the oral glucose tolerance test (OGTT).

Learn about diagnostic tests for type 1, type 2 and gestational diabetes.