Relapsing-remitting, where you have
alternating periods of active disease when symptoms flare up and periods when
symptoms fade. This cycle can occur for many years. The disease does not
advance during the remissions.
Primary progressive is where the disease is progressive from the start, although
damage to the central nervous system occurs at different rates in different
people. This course of MS is not very common.
Progressive relapsing, which is a rare course of MS
that causes steady damage to nerves when symptoms first appear and continues to
cause damage to the central nervous system even when you are not experiencing
WebMD Medical Reference from Healthwise
April 15, 2010
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