The many conditions that involve damage to the peripheral nervous system.
Understanding Peripheral Neuropathy
Peripheral neuropathy refers to the many conditions that involve damage to the peripheral nervous system (PNS), which is a communication network that sends signals between the brain and all other parts of the body.
Peripheral nerves send many types of information to the brain like temperature, vibration, and sensation. They also carry signals from the brain to the rest of the body. Best known are the signals to the muscles that tell them to move, similar to the cables that connect the different parts of a computer. Peripheral neuropathy can lead to:
- Loss of signals normally sent (like a broken wire)
- Inappropriate signaling when there shouldn’t be any (like static on a telephone line)
- Errors that distort the messages being sent (like a wavy television picture)
Signs and Symptoms
Symptoms of neuropathy can range from mild to disabling but are rarely life-threatening. The symptoms depend on the type of nerve fibers affected and the severity of the damage. Symptoms may develop over days, weeks, or years. In some cases, the symptoms improve on their own and may not require advanced care. Unlike nerve cells in the brain and spinal cord, peripheral nerve cells continue to grow throughout life.
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