8 Signs To Tell Your Blood Sugar Is Too High

5. Blisters and Other Skin Changes

Dark, thick areas of soft skin forming on the back of the neck or hands, armpits, face, or other areas can be another sign of insulin resistance. So if you notice that you're developing blisters, dryness, itchiness, discolorations, or other abnormalities of the skin, you should have your blood sugar checked.