Multiple sclerosis (MS) is a disease in which the immune system attacks the central nervous system. This may affect movement, coordination, energy, mood, vision, concentration, memory, and more.
In this video, learn the definition, symptoms, and causes of MS.
Dr. Fabian is the assistant professor of neurology at The Mount Sinai Hospital in New York City.
References
National Institute of Neurological Disorders and Stroke. (2025). Multiple sclerosis.
National Multiple Sclerosis Society. (n.d.). MS signs & symptoms.
National Multiple Sclerosis Society. (n.d.). Types of multiple sclerosis.
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Written by:
Lauren Smith, MALauren Smith, MA, has worked in health journalism since 2017. Before joining GoodRx, she was the senior health editor and writer for HealthiNation.
Reviewed by:
Mandy Armitage, MDMandy Armitage, MD, has combined clinical medicine with her passion for education and content development for many years. She served as medical director for the health technology companies HealthLoop (now Get Well) and Doximity.
