Ulcers that don’t heal
It could be: Diabetes. Uncontrolled glucose levels can damage nerves and cause poor circulation, so blood doesn’t reach the feet. When blood doesn’t get to a wound caused by, say, irritating shoes, the skin doesn’t heal properly. “Many, many people with diabetes are diagnosed first because of foot problems,” says Reid. Other signs of diabetes may include tingling or numbness of the feet. Ask your doctor about getting your blood sugar levels tested.