In multiple sclerosis, or MS, your immune system attacks myelin, the fatty tissue that surrounds and protects nerve fibers.
This causes scar tissue (sclerosis, also called plaque or lesions) to form on nerve fibers, disrupting the flow of electrical impulses throughout the nervous system.
This nerve damage can lead to a broad range of MS symptoms, from blurred vision to numbness to weakness to loss of balance and more.
For people with relapsing-remitting MS (RRMS), symptoms can worsen significantly, and new symptoms may arise, during relapses, or periods of acute inflammation in the central nervous system.
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