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Peripheral neuropathy is a problem that affects the peripheral nerves. These are the nerves that control your sense of touch, how you feel pain and temperature, and your muscle strength. Most of the time the problem starts in the fingers and toes. As it gets worse, it moves into the limbs, causing pain and loss of feeling in the feet, legs, and hands.
When you have peripheral neuropathy, you may have less feeling in your fingers and toes. You may have trouble with your balance. It may be hard to do things that require coordination, such as walking or fastening buttons.
Doctors don't always know what causes peripheral neuropathy. It is often caused by other health problems. It can also run in families.
The most common cause is diabetes. Having your blood sugar too high for too long a time can damage the nerves.
Other problems can also cause peripheral neuropathy, such as:
Symptoms can occur slowly over time. The most common ones are:
It can be hard to diagnose peripheral neuropathy, because symptoms can vary. People who have diabetes need to get a complete foot exam every year. During the foot exam, the doctor will check for signs of this peripheral neuropathy.
Your doctor will start by asking questions about:
Your doctor may also test your muscle strength and ability to feel touch, temperature, and pain. These tests include electromyography and nerve conduction tests.
You may also have blood tests to find out if you have diabetes, vitamin deficiencies, thyroid disease, or kidney problems that might cause neuropathy.
The focus of treatment for peripheral neuropathy is to relieve symptoms by treating the health problem that's causing it. For example, vitamin deficiency caused by overuse of alcohol can be treated by eating a healthy diet, taking vitamin supplements, and stopping alcohol use. If you have diabetes, controlling your blood sugar can slow neuropathy and may improve it.
You may have physical therapy to increase muscle strength and help build muscle control. Over-the-counter medicine can relieve mild nerve pain. Your doctor may also prescribe medicine to help with severe pain, numbness, tingling, and weakness.
Adopting healthy habits can reduce the effects of peripheral neuropathy. Be sure to eat a balanced diet, get regular exercise, avoid alcohol, and quit smoking.
It's also a good idea to take care to avoid injury.
Current as of:
June 4, 2014
E. Gregory Thompson, MD - Internal Medicine & David C.W. Lau, MD, PhD, FRCPC - Endocrinology
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