Symptoms

Prediabetes doesn't usually have any signs or symptoms.

One possible sign of prediabetes is darkened skin on certain parts of the body. Affected areas can include the neck, armpits, elbows, knees and knuckles.

Classic signs and symptoms that suggest you've moved from prediabetes to type 2 diabetes include:

• Increased thirst
• Frequent urination
• Excess hunger
• Fatigue
• Blurred vision

When to see a doctor

See your doctor if you're concerned about diabetes or if you notice any type 2 diabetes signs or symptoms. Ask your doctor about blood sugar screening if you have any risk factors for diabetes.