Dark, velvety discoloration in the folds of your skin is called acanthosis nigricans. This is another early warning sign of type 2 diabetes. It’s most common in the armpits, neck, and groin regions.

The symptoms of high blood sugar include frequent urination, fatigue, blurry vision, frequent hunger, and tingling in your limbs. Here’s what to do to manage your diabetes.

Viral infections are illnesses caused by a virus rather than bacteria or fungi. Many viral infections can cause skin rashes, called exanthems. Most clear up on their own, but some require medication.