Mal de débarquement syndrome (MdDS) is a persistent rocking, bobbing or swaying sensation that usually starts after travel — most often a cruise or boat trip, but also flights and long car journeys. A telltale feature is that the symptoms often ease while you’re in motion again, such as driving, and return once you stop. Some people improve on their own over weeks to months, but for others it lingers, and the evidence for specific treatments is still limited. At McKelvie Physiotherapy in Pickering, we carefully assess your balance system to rule out other causes of dizziness, then work alongside your physician on a realistic, individualised plan.
At a glance
- What it is
- A persistent feeling of rocking, bobbing or swaying — like still being on a boat — that typically begins after travel
- Typical trigger
- A cruise or boat trip most often, but also flights, train rides and long car journeys
- Key clue
- Symptoms often feel better while you’re in motion again (for example, driving) and return when you stop
- How long it lasts
- Some people recover within days to weeks; in others, symptoms persist for months or longer
- Treatment
- Evidence is limited; options include balance and vestibular rehab, specialised readaptation approaches still being studied, and physician-led care
- At McKelvie
- 60-minute vestibular assessment with infrared video goggles ($180) in Pickering; no referral needed
What is mal de débarquement syndrome?
Mal de débarquement is French for “sickness of disembarkment”. It describes a persistent sensation of rocking, bobbing or swaying — a non-spinning form of vertigo — that usually starts after a period of passive motion, such as:
- a cruise, ferry or sailing trip
- a long flight
- a train ride or long car journey
Feeling a little “sea-legged” for a few hours after a boat trip is common and normal. MdDS is different: the sensation lasts for more than 48 hours and can continue for weeks, months or longer. In 2020, the Bárány Society published formal diagnostic criteria for MdDS, which include onset within 48 hours of the end of travel and symptoms that temporarily improve with passive motion, such as driving (Cha et al., 2020).
What causes MdDS?
When you spend time on a moving boat or vehicle, your brain adapts to the motion so you can stay balanced. In MdDS, the brain appears to have difficulty readapting to stable ground once the motion stops, so it continues to generate a feeling of movement that isn’t there.
The exact mechanism isn’t fully understood. Current research suggests it involves how the brain processes motion and balance, rather than structural damage to the inner ear. MdDS can also occasionally begin without a travel trigger, for example after another vestibular problem, an illness or a period of high stress.
What are the symptoms of MdDS?
- A constant or near-constant rocking, bobbing or swaying sensation
- Symptoms that ease while driving or riding in a vehicle, then return once you stop
- Unsteadiness or a feeling of being off-balance
- Discomfort in busy visual environments, such as supermarkets, crowds or scrolling screens
- Fatigue and difficulty concentrating
- Worsening of headaches or anxiety
When it might not be MdDS
If your dizziness is spinning, comes in sudden attacks, or comes with hearing loss, ringing in the ears or a new severe headache, it may be something else — a thorough vestibular and medical assessment will help tell the difference.
If dizziness comes on suddenly with a severe headache, trouble speaking, facial drooping, weakness, numbness or loss of vision, call 911 — these can be signs of a stroke.
How is MdDS treated?
There is no single proven treatment for MdDS, and the research is still evolving. Your physician plays a key role in confirming the diagnosis, ruling out other conditions and discussing medication where appropriate. Many people improve with time, and early assessment helps you understand what you’re dealing with.
Specialised approaches that aim to “reset” the brain’s motion adaptation — for example, optokinetic and vestibulo-ocular reflex readaptation, which combines watching moving visual patterns with specific head movements — have shown encouraging results in some studies (Dai et al., 2017). These approaches are still being studied, and results vary from person to person.
As vestibular physiotherapists, our role is to assess your balance system carefully, rule out other treatable causes of dizziness, help you understand your symptoms, and guide a graded balance and activity program that supports your day-to-day function. We’ll be honest about what rehabilitation can and can’t do, and coordinate with your physician.
Assess
A detailed history of your travel and symptoms, plus eye-movement and balance testing with infrared goggles, to rule out other causes of dizziness.
Explain & plan
A clear explanation of MdDS and a realistic, individualised plan, coordinated with your physician.
Rebuild confidence
Graded balance and activity work matched to your tolerance, with practical strategies for travel, busy environments and daily life.
Why choose McKelvie Physiotherapy for MdDS?
- Vestibular-focused care — our team is led by an Advanced Vestibular Physical Therapist (AVPT).
- Advanced diagnostic technology — we use infrared video goggles (video-oculography) to record eye movements the naked eye can’t see, so your diagnosis is based on evidence, not guesswork.
- Thorough assessment — we rule out other causes of dizziness, such as BPPV.
- Honest, conservative advice — we’ll tell you what the evidence does and doesn’t support.
- One-on-one care in private rooms — never rushed, never shared.
- Care that comes to you — in person in Pickering, at home across the GTA, or virtually anywhere in Ontario.
- Direct billing to many major insurers — and no referral needed.
Sources
- Mal de débarquement syndrome diagnostic criteria: Consensus document of the Classification Committee of the Bárány Society. Journal of Vestibular Research (Cha YH, et al.), 2020.
- Treatment of the Mal de Debarquement Syndrome: A 1-Year Follow-up. Frontiers in Neurology (Dai M, et al.), 2017.