How do I know if I have Mal de debarquement?

Mal de debarquement syndrome (MdDS) is a neurological condition primarily characterized by a persistent sensation of rocking, swaying, or bobbing that typically begins after exposure to passive motion, such as a boat trip, flight, or long car ride. A hallmark of Mal de debarquement syndrome is that these symptoms often temporarily subside while the individual is in a moving vehicle, which helps clinicians distinguish it from other vestibular disorders.

What are the early signs and symptoms of Mal de debarquement syndrome?

The defining feature of Mal de debarquement syndrome is the sensation that you are still moving despite being on solid ground. Many patients describe this as feeling like they are on a boat or walking on a trampoline. Early signs often include a rhythmic, oscillatory sensation that persists for more than 48 hours after the triggering motion event has ceased. While many people experience temporary "land sickness" after a cruise, Mal de debarquement syndrome is diagnosed when this sensation becomes chronic, often lasting months or even years.

How can I perform a self-assessment for Mal de debarquement syndrome?

To help your doctor understand your experience, keep a symptom journal for two weeks. Look for these specific patterns:

• Motion sensitivity: Does the sensation worsen in visually complex environments, such as grocery store aisles or when looking at scrolling screens?


• The "Vehicle Effect": Do your symptoms decrease significantly when you are actively driving or riding in a car, train, or airplane?


• Onset triggers: Did your symptoms start specifically following a period of passive motion (e.g., a cruise, flight, or extended bed rest)?


• Absence of vertigo: Unlike Meniere’s disease or BPPV, Mal de debarquement syndrome usually presents as a rocking sensation rather than a spinning (vertigo) sensation.

When should I see a doctor and what tests should I request?

You should consult a neurologist or an otolaryngologist (ENT) specializing in neuro-otology if your symptoms persist beyond a few weeks. Because there is no single "blood test" for Mal de debarquement syndrome, diagnosis is one of exclusion. You should ask your specialist about the following:

1. Vestibular Function Testing: To rule out inner ear disorders like labyrinthitis or vestibular neuritis.


2. Neurological Imaging: An MRI of the brain is often ordered to rule out structural issues, though findings in Mal de debarquement syndrome are typically normal.


3. Videonystagmography (VNG): To assess how your eyes and inner ears work together to maintain balance.

What are the red flags requiring urgent evaluation?

While Mal de debarquement syndrome is not life-threatening, certain symptoms are not characteristic of the condition and require immediate medical attention. Seek urgent care if you experience sudden hearing loss, double vision, slurred speech, facial drooping, or severe, sudden-onset headaches. These can be indicators of other neurological events that must be ruled out immediately.

How can I advocate for myself if my symptoms are dismissed?

It is common for patients with Mal de debarquement syndrome to be told their tests are "normal." If you feel unheard, bring a printed copy of the diagnostic criteria from a reputable source like the NIH GARD or the MdDS Foundation to your appointment. Emphasize that your symptoms are causing functional impairment in your daily life. Connecting with the 11 community members on DiseaseMaps.org who share this diagnosis can also provide you with the vocabulary and confidence to discuss your condition effectively with medical professionals.

Next steps

• Schedule an appointment with a neuro-otologist or a vestibular physical therapist.


• Keep a daily symptom log to track triggers and intensity.


• Join the DiseaseMaps.org community to share experiences and learn coping strategies from others living with this condition.


• Request a referral to a vestibular rehabilitation specialist who has experience with chronic motion-based disorders.

Medical disclaimer: This content is for educational purposes only and does not constitute professional medical advice, diagnosis, or treatment; always seek the advice of your physician with any questions regarding a medical condition.

References

• NIH Genetic and Rare Diseases Information Center (GARD): Mal de debarquement syndrome.


• Orphanet: Mal de debarquement syndrome (ORPHA: 369846).


• MdDS Foundation: Clinical Diagnostic Criteria and Patient Resources.


• PubMed/National Library of Medicine: Current clinical perspectives on vestibular disorders.