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multiple sclerosis definition and symptoms	multiple sclerosis
relapsing multiple sclerosis definition	multiple sclerosis etiology
relapsing remitting multiple sclerosis definition	national multiple sclerosis society
primary progressive multiple sclerosis definition	multiple sclerosis prognosis

Multiple sclerosis (MS) is a potentially disabling disease of the brain and spinal cord (central nervous system).
In MS, the immune system attacks the protective sheath (myelin) that covers nerve fibers and causes communication problems between your brain and the rest of your body. Eventually, the disease can cause permanent damage or deterioration of the nerve fibers.
Signs and symptoms of MS vary widely between patients and depend on the location and severity of nerve fiber damage in ...

	When to seek medical or mental health expert
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Multiple sclerosis signs and symptoms may differ greatly from person to person and over the course of the disease depending on the location of affected nerve fibers.
Common symptoms include:
- Numbness or weakness in one or more limbs that typically occurs on one side of your body at a time
- Tingling
- Electric-shock sensations that occur with certain neck movements, especially bending the neck forward (Lhermitte sign)...

The cause of multiple sclerosis is unknown. It's considered an immune mediated disease in which the body's immune system attacks its own tissues. In the case of MS, this immune system malfunction destroys the fatty substance that coats and protects nerve fibers in the brain and spinal cord (myelin).
Myelin can be compared to the insulation coating on electrical wires. When the protective myelin is damaged and the nerve fiber is exposed, the messages that travel along that nerve fiber may be slowed or blocked....

There is no cure for multiple sclerosis. Treatment typically focuses on speeding recovery from attacks, reducing new radiographic and clinical relapses, slowing the progression of the disease, and managing MS symptoms. Some people have such mild symptoms that no treatment is necessary.
Treatments for MS attacks
- Corticosteroids, such as oral prednisone and intravenous methylprednisolone, are prescribed to reduce nerve inflammation. Side effects may include insomnia, increased blood pressu...

For informational purposes only and not a substitute for professional medical advice, diagnosis, or treatment.