Multiple sclerosis has a reputation as a young person’s condition. Most people in Ireland are diagnosed between 20 and 40, and most public information reflects that. Which leaves two groups of older adults poorly served: those who have lived with MS for decades and are now navigating it alongside ordinary ageing, and the smaller number diagnosed in their fifties or sixties who are told, repeatedly, that what they are feeling is just their age.
Ireland has one of the highest rates of MS in the world, with more than 10,000 people here living with it. If you are one of them, or you love someone who is, here is what actually matters after 50.
TL;DR
- Over 10,000 people in Ireland live with multiple sclerosis, one of the highest prevalence rates worldwide, and around three times as many women as men are diagnosed.
- Late-onset MS (first symptoms after 50) is uncommon, but it exists. It is more often progressive from the start, is diagnosed more slowly, and is frequently mistaken for ordinary age-related change.
- Multiple sclerosis is one of the 16 conditions covered by the HSE Long-Term Illness Scheme, so approved MS medicines and appliances are free regardless of your income. There is no means test.
- Ageing with long-standing MS brings its own agenda: bone health, fatigue management, bladder care, heat sensitivity and a periodic review of whether your treatment still suits you.
- MS Ireland runs an information line (0818 233 233) alongside physiotherapy, counselling, advocacy and respite services in communities around the country.
What MS actually is
Multiple sclerosis is a condition in which the immune system attacks myelin, the protective coating around nerve fibres in the brain and spinal cord. Damaged myelin means messages travel slowly, get scrambled, or fail to arrive. Because the affected nerves can be almost anywhere in the central nervous system, symptoms vary enormously: vision changes, numbness or tingling, weakness, balance problems, bladder urgency, pain, and the particular bone-deep fatigue that people with MS describe as unlike ordinary tiredness.
Around 85% of people start with relapsing-remitting MS, where symptoms flare (a relapse is generally defined as new symptoms lasting more than 48 hours) and then partly or fully settle. Roughly 15% have primary progressive MS, where function declines steadily from the outset without distinct relapses. Many who begin with the relapsing form eventually transition to secondary progressive MS, typically 15 to 20 years after onset.
Late-onset MS: the diagnosis that gets missed
Estimates of how many cases begin after 50 vary considerably between studies, from around 3% to as high as 12% depending on the population counted. Whatever the exact figure, it is enough that “too old for MS” is not a safe assumption.
Late-onset MS also behaves differently. It is much more likely to be primary progressive from the start, so there may be no dramatic relapse to force the issue, and research consistently finds that disability progresses faster and diagnosis takes longer.
The delay is the part worth dwelling on, because some of it is avoidable. Progressive weakness in one leg, worsening balance, bladder urgency and slowed thinking all get filed under normal ageing, particularly when the person reporting them is 62 rather than 32. If symptoms are asymmetric (affecting one side noticeably more), if they are getting steadily worse over months rather than fluctuating, or if you have unexplained changes in vision, gait or continence, that warrants a neurological assessment and, usually, an MRI. Ask your GP directly about a neurology referral. Being told to expect less of your body because of your birth year is not a diagnosis.
Growing older with MS you have had for years
If you were diagnosed in your twenties and are now in your sixties, you are dealing with something the original leaflets never covered: two processes at once. Ordinary ageing and MS both affect muscle mass, bone density, bladder function, balance and processing speed, and they compound each other. A few things deserve particular attention.
- Bone health. Reduced mobility, less weight-bearing activity, lower vitamin D and any history of steroid courses for relapses all raise fracture risk. Ask about a DEXA scan and whether you need vitamin D or bone-protective treatment.
- Falls. MS-related weakness and balance problems plus age-related changes is a genuinely high-risk combination. A physiotherapy assessment and a home review by an occupational therapist are among the highest-value things you can arrange.
- Treatment review. Disease-modifying therapies work primarily on inflammatory relapse activity, which tends to quieten with age, while immune-related risks rise. This does not mean stopping treatment, and you should never stop on your own. It does mean a periodic, honest conversation with your neurologist about whether your current therapy is still earning its place.
- Fatigue. Pacing, planning demanding tasks for your best hours, and treating the treatable contributors (poor sleep, low mood, anaemia, thyroid problems) does more than pushing through ever will.
Irish supports worth knowing about
The Long-Term Illness Scheme. Multiple sclerosis is one of the 16 listed conditions. Approved medicines, and medical and surgical appliances directly related to treating your MS, are supplied free of charge. It is not means tested and does not depend on your income. You need to be ordinarily resident in the State. If you have MS and are not registered for this, apply through the HSE.
MS Ireland. The national organisation runs an MS Information Line on 0818 233 233 and provides community physiotherapy, counselling, advocacy, information for the newly diagnosed and their families, and respite care. Their regional community workers are often the fastest route to practical answers.
HSE services. Neurology teams, MS nurse specialists where available, community physiotherapy, occupational therapy and continence services. Waiting times vary by region, so ask your GP or MS nurse what the local pathway looks like rather than assuming there is only one.
Income and practical supports. Depending on your circumstances and PRSI record, Disability Allowance or Invalidity Pension may apply. The Free Travel Scheme, the Housing Adaptation Grant for People with a Disability, and Carer’s Allowance or Carer’s Benefit for a family member who supports you are also worth investigating. Citizens Information will walk you through eligibility without charge.
Living well, not just managing
Exercise is not a risk in MS; it is treatment. Supervised resistance and aerobic work improves strength, fatigue and mood, and chair-based programmes exist for people whose mobility is limited. Heat sensitivity is real: many people find symptoms temporarily worsen when overheated, which is manageable with cool drinks, shade and pacing rather than avoiding activity. Keep vaccinations current, particularly on immune-modifying treatment. And take low mood seriously, because depression is more common in MS than in the general population and is highly treatable.
MS is unpredictable, and no article changes that. But the gap between people who know what they are entitled to and people who do not is enormous, and it is a gap you can close in an afternoon of phone calls.
At Críonna Health we write about ageing as something to be navigated well rather than endured, including when a long-term condition is part of the picture. If something in your body has changed and you have been told it is just your age, that is a reason to ask a second question.
This article is for general information and is not a substitute for individual medical advice. If you are concerned about new or worsening neurological symptoms, speak to your GP.
📷 Photo by Mobio Marketing on Unsplash
