Multiple Sclerosis: What You Should Know

Author: Shibrah Rafaqat, MBBS

Medical Reviewer: Azuka Chinweokwu Ezeike, MBBS, FWACS, FMCOG, MSc (PH)

Highlights:

• Multiple sclerosis (MS) is a chronic neurological condition where the immune system mistakenly attacks the protective coating of the nerves.
•  The exact cause has yet to be determined, but a number of factors, like genetic susceptibility, viral infections and low vitamin D are known to increase risk.
• Common symptoms include profound fatigue, numbness, vision changes, and muscle weakness.
• There is no single definitive test for MS; doctors rely on a combination of MRI scans, spinal fluid tests, and neurological exams for a diagnosis.
• While there is no cure, modern disease-modifying therapies (DMTs) can effectively slow the disease’s progression and prevent relapses.
• Living well with MS is entirely possible with early medical intervention, a strong support network, and strategic lifestyle adjustments.

Introduction

Hearing about a condition that affects the nervous system like Multiple Sclerosis (MS), much less being diagnosed with it, can feel overwhelming. Much of that fear comes from a lack of public familiarity with the condition. This is particularly because disorders like MS historically receive less public health discourse and media visibility in the region [1].

Understanding exactly what MS is and how modern medicine manages it can strip away much of the fear. With the right information, patients and their families can navigate this health journey confidently.

This article breaks it down in plain terms: what MS is, what might cause it, how doctors recognise and confirm it, and what day-to-day life with it can look like.

What Is Multiple Sclerosis?

To understand multiple sclerosis, think of the nerves in your brain and spinal cord as a highly sophisticated network of electrical wires. These wires are responsible for carrying vital messages from your brain to the rest of your body, allowing you to walk, talk, see, and feel.In a healthy body, these delicate nerve fibres are coated in a protective, insulating layer made of fats and proteins called the myelin sheath. 

This insulation works just like the plastic coating around a copper wire; it keeps the electrical signal strong and helps it travel quickly and smoothly between your brain, spinal cord and the rest of your body.

In MS, the immune system which normally defends you against infections, mistakenly attacks this myelin coating [2]. This immune attack causes inflammation and strips away the myelin, leaving behind areas of scar tissue (known in medicine as sclerosis). The damage slows down or blocks nerve signals [2].

 Depending on which nerves are affected, this can show up as problems with movement, sensation, vision or balance.MS is described as a chronic condition, meaning it’s long-term, but that doesn’t mean it looks the same for everyone. Some people experience mild, occasional symptoms for decades; others have a more active course that needs closer management [2].

What Causes Multiple Sclerosis?

Currently, medical science has not identified one single, definitive cause for the condition. Instead, global health researchers believe MS is triggered by a combination of genetic and environmental factors [3]:

• MS is diagnosed about two to three times more often in women than in men [2].
• Most people are diagnosed between the ages of 20 and 40, but MS can appear outside that range too [2].
• Having a first-degree relative (like a parent or sibling) with MS slightly increases your own risk, though MS isn’t strictly inherited in a simple pattern [3].
• Previous exposure to certain common viruses, particularly the Epstein-Barr virus, has been strongly linked to MS risk [3].
• According to epidemiological studies published by the World Health Organization (WHO), low exposure to sunlight and reduced vitamin D levels are recognised risk factors. Globally, MS tends to be reported less frequently in sunny regions closer to the equator [4].
• Smokers with MS tend to have more relapses and faster disease progression than non-smokers [3].

It’s worth noting that Nigeria’s location near the equator, along with higher average vitamin D levels from year-round sunlight, may partly explain why Nigeria's reported MS prevalence is approximately 1 per 100,000 people, considerably lower than rates seen in Europe or North America.

Common Symptoms of Multiple Sclerosis

Because MS can damage nerves anywhere in the central nervous system, no two people will experience the same symptoms. One person might feel completely fine most days, while another may struggle with daily mobility. Symptoms also tend to fluctuate rather than staying constant.

This can be a true relapse, where new or worsening symptoms last more than 24 hours because of fresh inflammation along the nerves [5]. But it can also be a temporary flare-up, which is often brought on by heat, stress or illness. While relapses need to be treated, flare-ups settle back down once the trigger passes.Some of the more common symptoms include:

• Fatigue that does not improve much with rest
• Numbness, tingling or a pins-and-needles feeling, often in the limbs
• Blurred or double vision, or pain when moving the eyes [2]
• Muscle weakness or stiffness
• Problems with balance, coordination or walking
• Bladder or bowel changes, such as urgency
• Difficulty concentrating or with short-term memory
• An electric-shock-like sensation down the back when bending the neck forward [2]

Many of these symptoms overlap with other, more common conditions, so having one or two of them doesn’t mean you have MS. They’re worth mentioning to a doctor, though, especially if they’re new, persistent, or affecting your daily life.

Types of Multiple Sclerosis

Multiple sclerosis does not have a single, predictable path of progression. Doctors generally describe it using a few main types, based on how symptoms behave over time [6]:

Relapsing-remitting MS (RRMS)

The most common type, making up around 85% of new diagnoses [6]. Symptoms flare up (relapse) and then improve or disappear for a while (remission), before possibly returning later.

Secondary progressive MS (SPMS)

Can develop in some people with RRMS, often years later. Relapses become less distinct, and symptoms tend to worsen more steadily over time [6].

Primary progressive MS (PPMS)

Less common, affecting roughly 10–15% of people with MS. Symptoms worsen gradually from the start, without the clear relapse-and-recovery pattern seen in RRMS [6].

Clinically isolated syndrome (CIS)

A single episode of MS-like symptoms. It doesn’t always go on to become MS, but doctors monitor it closely since it sometimes does [6].Once the type is identified, your doctor is better equipped to decide which treatments are likely to help you the most, and can counsel you about what to expect going forward.

How Is Multiple Sclerosis Diagnosed?

There is no single blood test or scan that can confirm MS on its own. Diagnosing the condition is a meticulous process of eliminating other possible diseases [5].If your doctor suspects MS, they will refer you to a neurologist. According to the established medical guidelines for MS diagnosis, the neurologist must find evidence of nerve damage in at least two different parts of your central nervous system, occurring at two different points in time [5].To gather this evidence, they rely on a combination of tests:

• Neurological examination: checking reflexes, muscle strength, coordination, vision and sensation.
• Magnetic Resonance Imaging (MRI) scan: to look for areas of damage (lesions) in the brain and spinal cord, which is one of the most useful diagnostic tools.
• Lumbar puncture (spinal tap): used to check the fluid around the brain and spinal cord for specific markers linked to MS [5].
• Evoked potential tests: measure how quickly your nerves respond to stimulation, which can reveal slowed signals even when symptoms aren’t yet obvious.
• Blood tests: mainly used to rule out other conditions that can look similar to MS.

Because MS can mimic other nervous system conditions, diagnosis sometimes takes time and a few repeat assessments. This can feel frustrating, but it also means the eventual diagnosis is more likely to be the right one.

How Is Multiple Sclerosis Treated?

There is no absolute cure for multiple sclerosis yet, but treatments have advanced remarkably over the past two decades. Modern medicine focuses on three distinct areas to keep patients as active and healthy as possible.

1. Modifying the Disease Course:

Disease-modifying therapies (DMTs) are medicines that alter how the immune system behaves to reduce the frequency of relapses and slow long-term disease progression [7]. They are administered through different delivery methods:

• Oral Medications (Pills): Taken by mouth, either as a daily dose or on a set schedule prescribed by your doctor. Examples include dimethyl fumarate (Tecfidera), fingolimod (Gilenya), and teriflunomide (Aubagio).
• Injectable Medications: Given as regular shots under the skin (subcutaneous) or into a muscle (intramuscular) on a set schedule (such as weekly or a few times a week). Examples include interferon beta-1a (Avonex, Rebif) and glatiramer acetate (Copaxone).
• Intravenous (IV) Infusions: Intravenous Infusions are delivered directly into the bloodstream through a drip line at a clinic, usually spaced out over several weeks or months (such as once every six months). Examples include ocrelizumab (Ocrevus), natalizumab (Tysabri), and alemtuzumab (Lemtrada).

2. Managing Relapses:

When a severe relapse occurs, doctors often prescribe a short course of high-dose corticosteroids (like methylprednisolone). These steroids rapidly reduce inflammation in the nerves to help patients recover their function much faster [8].

3. Symptom Management:

Everyday symptoms are managed through targeted treatments and supportive therapies. To help maintain independence and quality of life, a multidisciplinary approach is used: 

• Physiotherapy helps maintain muscle strength, improve balance, and keep you moving comfortably.
• Occupational therapy assists with practical strategies and tools to adapt daily tasks at home or work, making independent living easier.
• Symptom-specific medications can target specific challenges like muscle stiffness, fatigue, or bladder issues to keep everyday discomfort under control [7].

Treatment plans are rarely one-size-fits-all. What works well for one person with MS may not suit another, which is why ongoing conversations with your care team matter.

Living With Multiple Sclerosis

Living well with MS requires a proactive approach and a strong support network. In Nigeria, the role of family and community caregivers is incredibly important in providing emotional as well as physical support.

A diagnosis of MS is not the end of an active, meaningful life. Many people continue working, raising families and pursuing their goals for decades afterwards. From a medical perspective, rehabilitation and lifestyle adjustments are just as crucial as medications when it comes to managing MS. While the unpredictability of symptoms can feel daunting at first, adopting practical daily habits can help you stay in control and protect your energy.Here are a few strategies that tend to help:

• Pacing yourself: Staying physically active is important and can help with fatigue. At the same time, it’s important to conserve your energy throughout the day, so learn to break large tasks into smaller, manageable chunks.
• Managing heat: Some people with MS find their symptoms temporarily worsen in hot weather or after a hot bath; this isn’t dangerous, but staying cool and well-hydrated can prevent these [9].
• Balanced nutrition: There is no special diet, but a generally healthy, balanced diet supports your overall immune health and wellbeing.
• Looking after mental health: Living with a chronic condition can affect mood, and support from family, friends, a counsellor or a support group can make a real difference.
• Keeping up with follow-ups: Regular reviews help your care team adjust treatment as your needs change.

When Should You See a Doctor?

It is important to seek medical advice promptly if you notice any warning signs. You should see a doctor if:

• You experience new or unexplained neurological symptoms, such as sudden vision changes, numbness, weakness, or problems with balance or coordination, particularly if they last for more than 24 hours [5].
• If you already have an MS diagnosis and notice a new symptom, or a significant worsening of your existing daily challenges.
• If you experience unexpected side effects from your current medications.

Early intervention and early treatment are the absolute keys to protecting your central nervous system and preserving your long-term mobility and independence.

Conclusion

A diagnosis of multiple sclerosis can be scary, but it does not mean your life has to stop. It’s a manageable, well-studied condition with a growing number of treatment options, and most people diagnosed with it go on to live full lives. 

By understanding the science behind the symptoms, individuals and their caregivers can move away from fear and toward proactive management. With the incredible advancements in disease-modifying therapies and a commitment to healthy lifestyle adjustments, people living with MS can effectively manage their symptoms, maintain their independence, and continue leading rich, fulfilling lives.

Frequently Asked Questions (FAQs)

1. Is multiple sclerosis contagious?

No. MS is not an infectious disease; it’s an autoimmune disease and doesn’t spread from one person to another.

2. Is multiple sclerosis fatal?

MS itself is rarely life-threatening, and with the availability of modern treatment and care, most people with MS have a near-normal life expectancy.

3. Can multiple sclerosis be cured?

There’s no cure yet. However, treatments can reduce relapses, slow progression, and manage symptoms effectively.

4. Can a woman with MS still have children?

Yes. Many women with MS have healthy pregnancies. It’s best to plan pregnancy with your neurologist, since some MS medications need to be adjusted beforehand.

5. Is multiple sclerosis common in Nigeria?

MS has historically been reported less often in Nigeria and other parts of West Africa compared with Europe or North America, though improving diagnosis and awareness mean more cases are now being recognised.

References

1. Olatigbe CS. Multiple Sclerosis in Nigeria: Public Awareness and Early Diagnosis - Narrative Review. Int J Transl Sci Res. 2026; 2(1). Available from: https://www.scivisionpub.com/pdfs/multiple-sclerosis-in-nigeria-public-awareness-and-early-diagnosis-narrative-review-3989.pdf
2. Ghasemi N, Razavi S, Nikzad E. Multiple sclerosis: pathogenesis, symptoms, diagnoses and cell-based therapy. Cell J. 2017;19(1):1-10. Available from: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5241505/
3. Ascherio A. Environmental factors in multiple sclerosis. Expert Rev Clin Immunol. 2013;9(12):1147-1153. Available from: https://www.tandfonline.com/doi/full/10.1586/14737175.2013.865866
4. Simpson S Jr, Wang W, Otahal P, Blizzard L, van der Mei IAF, Taylor BV. Latitude continues to be significantly associated with the prevalence of multiple sclerosis: an updated meta-analysis. J Neurol Neurosurg Psychiatry. 2019 Nov;90(11):1193-1200. Available from: https://pubmed.ncbi.nlm.nih.gov/31217172/
5. Thompson AJ, Banwell BL, Barkhof F, Carroll WM, Coetzee T, Comi G, et al. Diagnosis of multiple sclerosis: 2017 revisions of the McDonald criteria. Lancet Neurol. 2018;17(2):162-173. Available from: https://pubmed.ncbi.nlm.nih.gov/29275977/
6. Klineova S, Lublin FD. Clinical course of multiple sclerosis. Cold Spring Harb Perspect Med. 2018;8(9):a028928. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC6120692/
7. Hauser SL, Cree BAC. Treatment of multiple sclerosis: a review. Am J Med. 2020;133(12):1380-1390. Available from: https://pmc.ncbi.nlm.nih.gov/articles/PMC7704606/
8. Burton JM, O’Connor PW, Hohol M, Beyene J. Oral versus intravenous steroids for treatment of relapses in multiple sclerosis. Cochrane Database Syst Rev. 2012;12(12):CD006921. Available from: https://pubmed.ncbi.nlm.nih.gov/23235634/
9. Davis SL, Wilson TE, White AT, Frohman EM. Thermoregulation in multiple sclerosis. J Appl Physiol (1985). 2010 Nov;109(5):1531-7. Available from: https://pubmed.ncbi.nlm.nih.gov/20671034/

Disclaimer:
The information provided on this website is for general educational and informational purposes only. It is not intended to replace 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.

Published October 16, 2026