The cause is diabetic neuropathy is unknown
There is no known cause of diabetic neuropathy, and it depends on where the nerves are damaged. For instance, neuropathy along your hands and feet or peripheral neuropathy that affects the feet, toes, hands, and fingers might be due to lack of energy. Dr. Kanner claims that diabetes may cause nerve cells to run out of energy because it prevents cells from getting the energy they need from glucose in the bloodstream.
You can also get nerve damage called mononeuropathy, which is a single nerve cell that suffers damage. Isolated nerve damage or mononeuropathy is caused by circulation problems with the smallest blood vessels that supply the nerves.