The causes and factors of neuropathy are many and a third of it is unknown, but it is known as the following: 1. Diabetes is the most common cause in the Western world is diabetes. It has been proven that a lack of balance in the disease leads to nerve damage, which is why the treatment of diabetes sometimes prevents this infection. 2.. One of the complications of other diseases of neuropathy can be a complication of other common diseases, such as: renal failure. Liver insufficiency. Hypothyroidism disorders. Immunological diseases. 3.. A lack of vitamins. It is also possible for a lack of vitamins, especially vitamin B1, and vitamin B1 4. Take a few medications that can cause exposure to certain medications or toxic substances, such as: heavy minerals such as arsenic, xium and lead, which is mainly in industrial materials, can harm the surrounding nerves and lead to neuropathy. 5. Genetic factors There are genetic neuropathy that usually occurs early, but not always. The genetic imbalance leads to a disorder in the manufacture of necessary vehicles in the nerve, and the imbalance in the production of one of the myelin vehicles is the sebaceous cover that envelops the nerve. 6. Neuritis may also be the result of nerve inflammation. This inflammation is often an expression of improper activity of the immune system. This activity can be against a nerve infection, such as: an infection caused by leprosy, or an infection with the cause of HIV (AIDS). 7. Infection, the immune system sometimes attacks the nerves as a late double infection, such as: breathing infection or gastro -intestinal infection, after the infection is already over. The reason for this is the agreement between germs and nerve compounds, so that the antibodies produced against bacteria or virus move against nervous compounds. A similar operation also occurs in neuropathy that accompanies cancer crops, which is called a former neuropathic preneoplasty.