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Peripheral neuropathy is a problem that affects the peripheral nerves. These nerves lead from the spinal cord to other parts of the body. They 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. It can cause pain and loss of feeling in the feet, legs, and hands.
There are several causes of peripheral neuropathy:
Sometimes the cause is not known.
Symptoms of peripheral neuropathy can occur slowly over time. The most common ones are:
If peripheral neuropathy gets worse, it can lead to a complete lack of feeling in your hands or feet. This can make you more likely to injure them. It may lead to calluses and blisters. It can also lead to bone and joint problems, infection, and ulcers.
For instance, small, repeated injuries to the foot may lead to bigger problems. This can happen because you can't feel the injuries. Reduced feeling in the feet can also change your step, leading to bone or joint problems.
If untreated, foot problems can become so severe that the foot or lower leg may have to be amputated. But treatment can slow down peripheral neuropathy. And it's a good idea to take care to avoid injury.
To diagnose peripheral neuropathy, your doctor will ask you about:
Your doctor will check your nerves. The doctor may check your muscle strength and ability to feel touch, temperature, and pain.
Sometimes nerve tests are needed. These include electromyography and nerve conduction tests.
You may also have blood tests. These tests will help the doctor find out if you have conditions that can cause neuropathy. Examples are diabetes, vitamin deficiencies, thyroid disease, and kidney problems.
Treatment for peripheral neuropathy can relieve symptoms. This is done by treating the health problem that's causing it. For example, if you have diabetes, keeping your blood sugar within your target range may help. Or maybe your body lacks certain vitamins caused by drinking too much alcohol. In that case, treatment may include eating a healthy diet, taking vitamins, and stopping alcohol use.
You may have physiotherapy. This can 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. If you have neuropathy in your feet, it's a good idea to have them checked during each office visit. This can help prevent problems.
Some people find that physiotherapy, acupuncture, or transcutaneous electrical nerve stimulation (TENS) helps relieve pain.
Follow-up care is a key part of your treatment and safety. Be sure to make and go to all appointments, and call your doctor or nurse advice line (811 in most provinces and territories) if you are having problems. It's also a good idea to know your test results and keep a list of the medicines you take.
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Current as of: August 25, 2022
Author: Healthwise Staff
Medical Review:Kathleen Romito MD - Family Medicine & David C.W. Lau MD, PhD, FRCPC - Endocrinology & Adam Husney MD - Family Medicine
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