Diabetic ulcers form in various places, but mostly on feet due to nerve damage and lack of blood flow in diabetics
Blisters, cuts, cracks, sores, redness, white areas, thick calluses, discoloration, or other changes can all be signs of a diabetic ulcer. Diabetics experience high blood sugar which can damage nerves and blood vessels. When these things are damaged, it lessens blood flow which makes it harder for wounds to heal and therefore makes diabetics more likely to get an infection.