Over the past few decades, the quality of life and life expectancy for people with multiple sclerosis (MS) has improved significantly. MS is a neurological condition that affects nearly 1 million American adults. New medications have slowed the progression of the condition.

However, people will generally experience a progression of MS symptoms and severity throughout their lives. There are four stages/types of MS progression:

clinically isolated syndrome
relapsing-remitting MS
secondary-progressive MS
primary-progressive MS

There is no one set timeline or course of MS, but knowing the stage can help you understand and manage your MS.


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