National Multiple Sclerosis Society
In multiple sclerosis (MS), damage to the myelin coating around the nerve fibers in the central nervous system (CNS) and to the nerve fibers themselves interferes with the transmission of nerve signals between the brain, spinal cord and the rest of the body. Disrupted nerve signals cause the symptoms of MS, which vary from one person to another and over time for any given individual, depending on where and when the damage occurs.
The diagnosis of MS requires evidence of at least two areas of damage in the CNS, which have occurred at different times.
Learn to recognize and manage the symptoms of MS.
No single test can diagnose MS. The medical history, neurologic exam and lab tests help physicians rule out other diseases and confirm the MS diagnosis.
Find information, resources and tips for managing that challenging time before a diagnosis of MS can either be confirmed or ruled out.
Access MS information and resources to help you make treatment decisions, protect your employment options and make connections with others.
Learn what it means to have a CIS, how a CIS can evolve into MS, and what treatment options are available to delay an MS diagnosis.
Learn about the large number of other medical conditions the doctor has to rule out before confirming a diagnosis of MS
Access the comprehensive interdisciplinary model of MS care, including disease and symptom management, rehabilitation, and psychosocial support.
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