In some ways, each person with multiple sclerosis lives with a different illness. Although nerve damage is always a part of the disease, the pattern is unique for everyone.
Doctors have identified a few major types of MS. The categories are important, because they help predict how severe the disease can be and how well treatment will work.

Relapsing-Remitting Multiple Sclerosis

Most people with multiple sclerosis -- around 85% -- have this type. They usually have their first signs of the disease in their early 20s. After that, they have attacks of symptoms (called relapses) from time to time, followed by weeks, months, or years of recovery (called remissions).
The nerves that are affected, how severe attacks are, the degree of recovery, and the time between relapses all vary widely from person to person.
Eventually, most people with relapsing-remitting MS will move on to a secondary progressive phase of MS.
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