Types of MS

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[MUSIC PLAYING] SPEAKER: With multiple sclerosis, symptoms may differ from person to person and can change over the course of the disease. People may experience cycles or periods of new or worsening symptoms, called relapses, are followed by periods of little to no symptoms, called remission. These relapses can last anywhere from a few days to weeks, and remission periods can last months or even years.

Relapsing remitting MS is the most common form, defined by clear periods of relapses and remission. During a relapse, symptoms worsen, then gradually improve. During the remission phase, symptoms are mild or absent, and the overall disease does not progress.

After 10 to 20 years of diagnosis, about 50% of people with RRMS progressed to secondary progressive MS. Patients no longer experience remission since their symptoms steadily worsen over time without improvement.

Primary progressive MS is one of the more rare types where symptoms continually get worse from initial diagnosis. Relapses do not occur, although patients may experience day to day fluctuations. Similar to PPMS, progressive relapsing MS progressively worsens from the beginning but may have occasional periods of more intensified symptoms. MS is a lifelong condition. It may change and evolve over time. Be sure to communicate with your doctor any time you experience new or worsening symptoms. [MUSIC PLAYING]