A person with diabetes whose feet itch at night should see a doctor because this may indicate diabetic neuropathy, suggests the Diabetes Action Research & Education Foundation. Diabetic peripheral neuropathy is a diabetes complication in which nerves of the feet and other areas of the body can be damaged, causing other symptoms like pain, numbness and a burning sensation at night, notes WebMD.
Diabetic neuropathy can be the result of uncontrolled high blood glucose in diabetics. Patients who experience diabetic neuropathy may have to lower their blood glucose levels with medications. Possible complications of not addressing diabetic neuropathy problems are infections or ulcers of the feet, which can cause gangrene and lead to loss of the limb, reports the Mayo Clinic.