Facebook Pixel

Multiple Sclerosis Definition & Overview

Mindfulness: A Helpful Coping Technique

Definition

Multiple sclerosis (MS) is a chronic, disabling disease of the central nervous system. The disease causes inflammation, destruction, and scarring of the sheath that covers nerve fibers, called myelin, in the brain and spinal cord. As a result, electrical signals from the brain are slowed or blocked from reaching the eyes, muscles, and other parts of the body.

Nerve Fiber (Neuron)

Myelin Sheath Damage
© 2009 Nucleus Medical Art, Inc.

There are several types of MS:

  • Relapsing-remitting MS—Symptoms suddenly reappear every few years, last for a few weeks or months, then go back into remission. Symptoms sometimes worsen with each occurrence.
  • Primary progressive MS—Symptoms gradually worsen after symptoms first appear. Relapses and remissions usually do not occur.
  • Secondary progressive MS—After years of relapses and remissions, symptoms suddenly begin to progressively worsen.
  • Progressive relapsing MS—Symptoms gradually worsen after symptoms first appear. One or more relapses may also occur.

Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition. Copyright © 2024 EBSCO Publishing All rights reserved.

The Latest in Multiple Sclerosis Definition & Overview

Get Email Updates

Multiple Sclerosis Guide

Have a question? We're here to help. Ask the Community.

ASK

Health Newsletter

Receive the latest and greatest in women's health and wellness from EmpowHER - for free!