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Tingling in Hands and Feet

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Causes of Tingling in the Hands and Feet continued...

Nerve entrapment syndromes. These include carpal tunnel syndrome, ulnar nerve palsy, peroneal nerve palsy, and radial nerve palsy.

Systemic diseases. These include kidney disorders, liver disease, vascular damage and blood diseases, amyloidosis, connective tissue disorders and chronic inflammation, hormonal imbalances (including hypothyroidism), and cancers and benign tumors that impinge on nerves.

Vitamin deficiencies. Vitamins E, B1, B6, B12, and niacin are essential for healthy nerve function. A B12 deficiency, for example, can lead to pernicious anemia, an important cause of peripheral neuropathy. But too much B6 also can cause tingling in the hands and feet.

Alcoholism. Alcoholics are more likely to have a thiamine or other important vitamin deficiencies because of poor dietary habits, a common cause of peripheral neuropathy. It's also possible that alcoholism itself can cause nerve damage, a condition that some researchers call alcoholic neuropathy.

Toxins. These include heavy metals such as lead, arsenic, mercury, and thallium, and some industrial and environmental chemicals. They also include certain medications -- especially chemotherapy drugs used for lung cancer -- but also some antiviral and antibiotic drugs.

Infections. These include Lyme disease, shingles (varicella-zoster), cytomegalovirus, Epstein-Barr, herpes simplex, and HIV/AIDS.

Autoimmune diseases. These include Guillain-Barre syndrome, lupus, and rheumatoid arthritis.

Inherited disorders. These include a group of disorders collectively known as Charcot-Marie-Tooth disease.

Injury. Often related to trauma, nerves can be compressed, crushed, or damaged, resulting in nerve pain. Examples include nerve compression caused by a herniated disc or dislocated bone.

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