Health topic

Image by brgfx on Freepik logo

Symptoms and causes of developing multiple sclerosis


multiple sclerosis


Още ...

Multiple sclerosis (MS) is a chronic disease affecting the central nervous system (brain and spinal cord). MS occurs when the immune system attacks nerve fibers and myelin sheath (a fatty substance that surrounds/isolates healthy nerve fibers) in the brain and spinal cord. This attack causes inflammation, which destroys the processes of nerve cells and myelina, altering electrical messages in the brain.

What is multiple sclerosis

Multiple sclerosis is a disease that affects the brain, spinal cord and optic nerves that make up the central nervous system and control everything we do. [ref. 1] 

The exact cause of the development of the disease is unknown, but we know that something triggers the immune system to specifically attack the central nervous system (CNS). The resulting damage to myelina - the protective layer, isolating wire-like nerve fibers, disrupts signals to and from the brain. This interruption of communication signals causes unpredictable symptoms such as tingling, tingling, mood swings, memory problems, pain, fatigue, blindness and/or paralysis

As mentioned, the course of the disease varies from person to person, and these losses may be temporary or long-lasting. These things largely depend on the type of MS from which the individual suffers. 

Although there is no way to predict with certainty how the individual's disease will progress, four main courses of MS disease (also called types or phenotypes) were defined by the International Advisory Committee on Clinical Trials of MS in 2013 [Ref. 2]  These are:

  1. Clinically isolated syndrome
  2. Relapse-remitting (or recurrent only)
  3. Secondary progressive
  4. Primary progressive.

Symptoms and causes of developing multiple sclerosis

The cause or causes of multiple sclerosis have not been established by the scientific community. Currently, scientists believe that MS is triggered by a combination of factors. 

To establish the cause, studies are carried out in the following areas:

  • Immunology (examination of the body's immune system) - abnormal immune response;
  • Epidemiology (study of disease patterns in large groups of people) - predisposition of people with a certain place of residence, vitamin D deficiency, obesity, smoking;
  • Genetics (understanding genes that may not function properly in people who develop MS) - MS is not an inherited disease, which means it is not a disease that is passed down from generation to generation. However, in MS, there is a genetic risk that can be inherited. In the general population, the risk of developing MS is about 1 in 750 - 1000. In single-day twins, if one twin has MS, the risk of the other twin developing MS is about 1 in 4.
  • Infectious agents (such as viruses) - measles, human herpes virus-6, Epstein-Barr virus (EBV) and others.

When we come to information about the reasons why people develop multiple sclerosis, the process of finding more effective ways to treat and – ultimately – cure will be accelerated. It is also important to look for ways of prevention, which would be the best development.

Symptoms of MS are unpredictable and vary in type and severity from one person to another and in the same person over time. These manifestations can disappear temporarily or pass completely, or they can continue and worsen over time.

The most common symptoms of MS include: 

  • Fatigue
  • Numbness and tingling
  • Blurred vision
  • Double vision
  • Weakness
  • Poor coordination and imbalance
  • Pain
  • Depression and problems with memory and concentration

Less often MS can cause tremor, paralysis and blindness. Various scientific sources describe the so-called "embrace of multiple sclerosis", which is often the first symptom of MS or relapse. It is a feeling of squeezing around the torso, which feels like something that wraps or tightens around it.

  1. What is multiple sclerosis
  2. Symptoms and causes of developing multiple sclerosis


Diagnosing MS can be a difficult process. At an early stage of MS, symptoms may be nonspecific and suggest several disorders of the nervous system, and at a later stage also make treatment more difficult. 

Diagnostic criteria, which include MRI results and analysis of cerebrospinal fluid, have been developed and revised by experts in the field to help healthcare professionals make an accurate and timely diagnosis. It is crucial for the future and life of a person diagnosed with multiple sclerosis.


  1. Multiple Sclerosis: Pathogenesis, Symptoms, Diagnoses and Cell-Based Therapy - PubMed
  2. Defining the clinical course of multiple sclerosis: the 2013 revisions - PubMed

The author

Bettina Tsvetkova is a Bachelor of Marketing and Master of Entrepreneurship, a fan of healthy eating, power sports and cycling. Author of over 1500 scientifically based articles, product texts and promotional materials on a healthy topic for Bulgarian and foreign websites. 


website logo


About Us

CompanyPrivacy and cookie policyTerms and conditionsHTML SitemapArticles

© 2023. All rights reserved.