Numbness and tingling are abnormal sensations that can occur anywhere in your body, but they are often felt in your fingers, hands, feet, arms, or legs.

Causes
There are many possible causes of numbness and tingling, including:
-- Sitting or standing in the same position for a long time
-- Injuring a nerve (a neck injury may cause you to feel numbness anywhere along your arm or hand, while a low back injury can cause numbness or tingling down the back of your leg)
-- Pressure on the nerves of the spine, such as from a herniated disk
-- Pressure on peripheral nerves from enlarged blood vessels, tumors, scar tissue, or infection
-- Shingles or herpes zoster infection
-- Lack of blood supply to an area, such as from atherosclerosis, frostbite, or vessel inflammation
-- Abnormal levels of calcium, potassium, or sodium in your body
-- Diabetes
-- Migraines
-- Multiple sclerosis
-- Seizures
-- Stroke

Home Care
Your health care provider should find and treat the cause of your numbness or tingling. Treating the condition may make the symptoms go away or stop them from getting worse. For example, if you have carpal tunnel syndrome or low back pain, your doctor may recommend certain exercises.

If you have diabetes, your doctor will discuss ways to control your blood sugar levels.

Low levels of vitamins will be treated with vitamin supplements.

Medicines that cause numbness or tingling may need to be switched or changed. DO NOT change or stop taking any of your medicines or take large doses of any vitamins or supplements until you have talked with your provider.

Because numbness can cause a decrease in feeling, you may be more likely to accidentally injure a numb hand or foot. Take care to protect the area from cuts, bumps, bruises, burns, or other injuries.