Multiple sclerosis (MS) is a chronic, often disabling disease of the central nervous system (brain, spinal cord and optic nerves) that interferes with the brain’s ability to send and receive messages. Multiple Sclerosis affects women more frequently than men and in most cases, is diagnosed between the ages of 20 and 40. It is a result of an abnormal immune system response that damages the protective covering (myelin) of nerve fibers in many areas of the central nervous system. This damage to myelin disrupts nerve conduction, which causes the various symptoms of multiple sclerosis.
1100 New York Ave NW, Suite 660
Washington, DC 20005
Phone: 800-344-4867
Email: msaa@mymsaa.org
Greater New England Chapter
101A First Avenue, Suite #6
Waltham, MA 02451-1115
Phone: 800-344-4867
Questions and answers in Spanish.
Advice about starting therapy, medicine information & educational materials.
Phone: 800-456-2255
Fact Sheet last updated on: 8/26/2024
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