In diabetics, foot pain and toe sores that are left untreated can lead to complications, such as ulcer formation, infections, gangrene and possible amputation of the toes or the affected leg. The incidence rate for amputation in a diabetic is ten times greater than the rate in other people who do not have diabetes, states WebMD. Diabetes can cause poor blood circulation and nerve damage in the feet that can lead to these diabetic foot complications.
Nerve damage in the feet can cause a diabetic not to feel pain, sores, heat or cold in this area of the body. Similarly, a person with diabetes and high blood glucose levels can also have poor blood circulation, which may lead to peripheral artery disease, notes the National Institute of Diabetes and Digestive and Kidney Diseases. Decreased blood circulation can make it more difficult for foot wounds and sores to heal. Both these problems associated with diabetes also can lead to the complications of ulcers and infections of the toes or feet.
Some foot conditions that can cause foot sores, pain and infections are bunions, blisters, corns, plantar warts and dry, itchy or scaling skin. Some symptoms of a foot infection are the formation of pus and skin that is warm. If a foot condition leads to an open wound or sore in a diabetic patient, it can progress to an infection, gangrene and amputation when these foot conditions are left untreated. In most cases, good foot care can avoid most feet sores or wounds, according to WebMD. However, if feet or toe sores develop, it is important to get prompt medical treatment for them.