Multiple Sclerosis Overview, Etiology of MS, MS News Today

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Multiple sclerosis (MS) is a neurodegenerative disorder caused by the immune system mistakenly attacking the myelin sheath, or the protective protein coat around nerve fibers. This results in inflammation, which further damages the myelin sheath as well as the nerve cells themselves, and the cells that produce myelin.

The immune system attack on myelin causes a disruption in electric signals traveling along the nerve fibers from the brain to the body and back. As a result, p atients with MS experience many symptoms , including fatigue, numbness and tingling, muscle spasms, walking difficulties, pain, and bowel or bladder problems. Many patients also experience emotional changes, including depression, anxiety, and mood swings.

There is no single test to diagnose MS. Physicians diagnose the disease based on a series of physical and neurological examinations that can help eliminate other conditions. These tests include magnetic resonance imaging (MRI), blood and cerebrospinal fluid tests, and tests that measure electrical signals from the brain.

Types of MS

Clinically isolated syndrome

Clinically isolated syndrome (CIS) represents a single event, the first episode of neurological symptoms. On its own, it is not indicative of MS, unless MRI scans show lesions in the brain.

Relapsing-remitting multiple sclerosis

Relapsing-remitting multiple sclerosis (RRMS) is the most common type of MS. Patients experience attacks of increasing neurological symptoms, called exacerbations or relapses, followed by periods of partial or complete recovery. At various times, patients may have active, not active, or worsening neurological symptoms.

Secondary progressive multiple sclerosis

Secondary progressive multiple sclerosis (SPMS) is the secondary stage of MS that follows RRMS. Patients may have relapsing-remitting episodes initially but then experience a steady worsening of neurological symptoms.

Primary progressive multiple sclerosis

Primary progressive multiple sclerosis (PPMS) affects about 15 percent of MS patients. Patients experience a steady decline in neurological function without relapses from the onset of symptoms.


There are many treatments available for MS, and many more experimental treatments are being developed. Most therapies aim to suppress the immune system to reduce inflammation and help protect the myelin sheath.

With improving treatments , life expectancy for patients with MS has increased over the years and most patients with MS now live to age 65 or older.

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.


I am very interested in the news and ongoing & upcoming studies and related material. I do besides having Primary Progressive MS 2 belong to a chapter in my hometown area . I would like to share at our meetings any of your materials .

My best friend suffers with MS. I have watched her have several relapsing remitting episodes over a period of 2 1/2 years. This last one has been very difficult. She has spasms in her stomach, legs and back. These last for days. Any information I can get to gain more knowledge is very helpful so I can encourage her. She is a strong beautiful woman and not use to debilitating situations. She is use to pushing through pain and weakness, but this has been extremely difficult to say the least. This relapse found another Lesion and she isn’t able to push through.

Hope she gets better again it’s hard when u get hit with it at once then u need to adapt too it

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