What Causes Paralysis?

Paralysis is most often caused by damage in the nervous system, especially the spinal cord. Major causes are stroke, trauma with nerve injury, poliomyelitis, amyotrophic lateral sclerosis (ALS), botulism, spina bifida, multiple sclerosis, and Guillain-Barré syndrome.

Temporary paralysis occurs during REM sleep, and dysregulation of this system can lead to episodes of waking paralysis. Drugs that interfere with nerve function, such as curare, can also cause paralysis.

There are many known causes for paralysis, and perhaps more yet to be discovered.

''Pseudoparalysis'' (''pseudo-'' meaning false, not genuine) is voluntary restriction or inhibition of motion because of pain, incoordination, or other cause, and is not due to actual muscular paralysis. In an infant, it may be a symptom of congenital syphilis.

Further Reading


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