Polyneuropathy is a neurological disorder that occurs when many nerves throughout the body malfunction simultaneously. It may be acute and appear without warning, or chronic and develop gradually over a longer period of time. Many polyneuropathies have both motor and sensory involvement; some also involve dysfunction of the autonomic nervous system. These disorders are often symmetric and frequently affect the feet and hands, causing weakness, loss of sensation, pins-and-needle sensations or burning pain. There are numerous conditions that can cause polyneuropathy.
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