What is secondary-progressive MS (multiple sclerosis)?

Secondary-progressive MS is one of four forms of the disease. In secondary-progressive MS, patients may first experience periods in which their symptoms seem to appear and then go away. However, eventually, the symptoms of the disease progress more regularly.

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Secondary-progressive MS is one of four forms of the disease. In secondary-progressive MS, patients may first experience periods in which their symptoms seem to appear and then go away. However, eventually, the symptoms of the disease progress more... More
Multiple Sclerosis Foundation answered:

Secondary progressive multiple sclerosis (SPMS) initially begins with a relapsing-remitting course (characterized by clearly defined acute attacks) that later becomes consistently progressive at a variable rate. The course of the disease may continue to include occasional relapses and minor remissions. Individuals with SPMS accumulate deficits from which they do not recover completely. Permanent and slowly progressive gait problems often herald the onset of SPMS.
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More Related Answers from Multiple Sclerosis Foundation

Secondary progressive multiple sclerosis (SPMS) initially begins with a relapsing-remitting course (characterized by clearly defined acute attacks) that later becomes consistently progressive at a variable rate. The course of the disease may... More