Persons with diabetes often have circulation disorders (peripheral vascular disease) that can cause cramping in the calf or buttocks when walking. The symptoms can progress to sever cramping or pain at rest, with associated color and temperature changes (the feet may turn bright red when hanging down and constantly fell cold). Also, the skin may become shiny, thinned, and easily damaged. A reduction in hair growth and a thickening of the toenails might also be present.
Poor circulation, resulting in reduced blood flow to the feet, restricts delivery of oxygen and nutrients that are required for normal maintenance and repair. Healing of foot injuries, infection or ulceration is affected. Peripheral vascular bypass operations may avert lower extremity amputation.
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