Diabetic foot ulcers are open sores or wounds commonly located on the bottom of the foot. Ulcers can result from a loss of feeling (numbness) and/or decreased circulation in the foot.
Feeling pain helps protect the skin from injury. Diabetics with loss of feeling often develop blisters from shoe pressure or notice blood on a sock because of a roofing nail in their shoe. It's extremely important for all diabetics to inspect their feet daily for signs of irritation following a basic diabetic foot care protocol.