Diseases, Conditions and Tests
The RxList disease and condition listing contains explanations of many medical conditions and tests. Disease articles are written by U.S. Board Certified Physicians. To use the listing, browse the terms by selecting a letter.
Featured: Multiple Sclerosis
Multiple sclerosis is a disease which causes demyelination of the brain and spinal cord nerve cells. When this occurs, axons (the parts of the nerve cells which conduct impulses to other cells), don't work as well. While MS is considered an autoimmune disorder, the exact cause hasn't yet been found.
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