Diabetic foot infections are one of the common complications of uncontrolled diabetes. Increased blood sugar levels can damage nerves and blood vessels, leading to loss of sensation and reduced blood flow to the feet. Because of losing sensation to pain, heat or cold, foot injuries may be ignored and can worsen without intervention. The reduced blood supply also slows down the normal healing process. Even minor wounds can result in ulcers and eventually gangrene that may sometimes necessitate amputation.