Around 85% of people with multiple sclerosis (MS) are diagnosed first with the relapsing-remitting form of the disease (RRMS).

Relapse is defined by the appearance of new symptoms or the return of old symptoms for 24 hours or more, without a change in the body temperature or infection. In RRMS, patients experience inflammatory attacks on nerve fibers and the myelin sheaths that protect them. During attacks, newly damaged areas appear and lead to some more common MS symptoms. Symptoms may vary among people with MS because the affected areas are different.

Some of the most frequently reported symptoms include fatigue, numbness, vision problems, spasticity or stiffness, bowel and bladder problems, and problems with memory and processing information.

These relapses (called exacerbations) are followed by periods of partial or complete recovery (called remissions). 

shutterstock_93206032During remissions, all of the symptoms may disappear or some may continue and become permanent. However, no apparent progression of the disease occurs during this time.

Relapsing-remitting multiple sclerosis can be characterized as active (with relapses or evidence of new activity seen on an MRI) or not active, and worsening or not worsening. In other words, there may be or not be an increase in disability over a specific period of time following the relapse.

RRMS differs from progressive types of MS because in RRMS the relapses represent new inflammatory attacks on the central nervous system (CNS). Much less inflammation is present in the progressive forms of the disease.

People with RRMS usually have more brain lesions with more inflammatory cells. People with progressive types of MS experience more spinal cord lesions with fewer inflammatory cells.

Women are up to three times more affected by RRMS than men. RRMS diagnosis is usually made earlier than progressive multiple sclerosis types ( 20- to 30-year-olds vs. 40- to 50-year-olds, respectively).

In addition to approved disease-modifying agents that reduce disease activity and progression, the most common treatment for relapse management is corticosteroid (three to five days of high-dose, intravenous corticosteroid) in order to reduce inflammation.

Some of the corticoids available are:

High-dose intravenous Solu-Medrol (methylprednisolone)

High-dose oral Deltasone (prednisone)

H.P. Acthar Gel (ACTH)

Note: Multiple Sclerosis News Today is strictly a news and information website about the disease. It does not provide medical advice, diagnosis, or treatment. This content is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition. Never disregard professional medical advice or delay in seeking it because of something you have read on this website.

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  1. https://www.mssociety.org.uk/what-is-ms/types-of-ms/relapsing-remitting-rrms
  2. http://www.nationalmssociety.org/What-is-MS/Types-of-MS/Relapsing-remitting-MS