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Glossary of Multiple Sclerosis Terms

A sudden or severe exacerbation (also known as a relapse, attack, flare-up, or episode), in which existing symptoms worsen, or new symptoms develop. To be considered a true relapse, symptoms must be p [..]

Written instructions that provide specific directions to doctors and family regarding a person’s end-of-life choices in advance, should this person become unable to make these decisions on his or her [..]

A brace that holds and angles the foot and ankle in the best position for maximum comfort and mobility. This device can also relieve stress on the knee.

A protein produced by the body’s immune system when it detects foreign substances, called antigens. Examples of antigens include microorganisms (such as bacteria, fungi, parasites, and viruses) and ch [..]

A foreign molecule or substance that stimulates the immune system to activate a series of events to eliminate the antigen. In MS, the immune system misdirects the reactivity to antigens to damage the [..]

Tools, products, or types of equipment that help someone perform tasks and activities. They may help individuals to move around, see, communicate, eat, or get dressed. Some are high-tech tools, such a [..]

Any service or tool that can help a person with a disability perform activities that might otherwise be difficult or not be possible.

Inability to coordinate walking movements.