Written and medically reviewed by Tae Ho Guak, MD, board-certified neurologist · Reviewed July 2026 · Editorial policy
Summary — Vestibular migraine (Vestibular Migraine, ICHD-3 Appendix A1.6.6) is a form of migraine in which dizziness and vertigo are the primary symptoms rather than headache, accounting for approximately 7–10% of adult patients presenting to neurology and otolaryngology clinics with dizziness. However, because headache is absent or mild, misdiagnosis as Ménière’s disease, benign paroxysmal positional vertigo (BPPV), or vestibular neuritis is common. This article summarizes diagnostic criteria, key differential diagnostic points, and evidence-based management strategies applicable to patients in daily life.
Medical Background — Why Do Migraine Patients Experience Dizziness?
Vestibular migraine is a form of primary headache disorder with relatively recently established diagnostic criteria, listed in Appendix A1.6.6 of the International Classification of Headache Disorders, 3rd edition (ICHD-3). The lifetime prevalence is estimated at approximately 1–3%, and approximately 10% of patients visiting dizziness clinics and 25–30% of migraine patients experience vestibular symptoms (vertigo, floating sensation, oscillopsia) at least once in their lifetime (Lempert et al., J Vestib Res, 2012; Beh, Continuum, 2022).
Although the pathophysiology is not fully understood, it is believed to be explained by cortical spreading depression—the core mechanism of migraine—spreading to the vestibular cortex (superior temporal gyrus and posterior insula), and activation of the trigeminal-vascular system affecting the microcirculation and neural circuits of the inner ear. CGRP (calcitonin gene-related peptide) is expressed in the lateral semicircular canal and cochlea of the inner ear, and accumulating clinical evidence supports the effectiveness of CGRP antagonists in alleviating vestibular symptoms (Russo et al., Headache, 2023).
Diagnosis and Differential Diagnosis — ICHD-3 Diagnostic Criteria and Look-Alike Conditions
ICHD-3 A1.6.6 Vestibular Migraine Diagnostic Criteria (Summary):
A. At least 5 attacks of moderate to severe vestibular symptoms lasting 5 minutes to 72 hours
B. Current or previous diagnosis satisfying ICHD-3 1.1 (migraine without aura) or 1.2 (migraine with aura)
C. In ≥50% of vestibular symptom attacks, one or more of the following migraine features are present: ① unilateral, pulsatile, moderate or severe headache, ② photophobia or phonophobia, ③ visual aura
D. Not better explained by another vestibular disorder or other ICHD-3 diagnosis
Key Differential Diagnostic Points:
Ménière’s disease: Hearing loss, tinnitus, and aural fullness progress simultaneously with attacks. In vestibular migraine, auditory symptoms are mild or absent. However, because the two conditions coexist in approximately 25% of cases, audiometry and vestibular function testing are essential.
BPPV (Benign Paroxysmal Positional Vertigo): Brief, rotatory vertigo lasting several seconds occurs with head position changes and resolves quickly. Confirmed by Dix-Hallpike maneuver. Vestibular migraine starts spontaneously and lasts hours to days.
Vestibular Neuritis: A single episode of severe rotatory vertigo lasting days to weeks. Headache or photophobia/phonophobia are rarely present.
Posterior Circulation Transient Ischemic Attack (TIA): Patients ≥50 years old with cardiovascular risk factors presenting with newly onset dizziness, diplopia, or dysarthria require imaging to exclude this diagnosis.
Self-Management and Prevention — Five Evidence-Based Strategies to Implement Today
Vestibular migraine is most effectively managed by a three-pronged approach combining lifestyle modification + preventive medication + vestibular rehabilitation, rather than medication alone (American Academy of Neurology 2019 guidelines).
1. Keep a headache and dizziness diary for at least 2 months: Recording attack time, duration, associated symptoms, diet, sleep, and menstrual cycle reveals individual trigger factors (triggers).
2. Maintain consistent sleep times within ±30 minutes: The migrainous brain is sensitive to disruptions in homeostasis; both weekend sleep delay and sleep deprivation trigger attacks.
3. Limit dietary triggers: Aged cheese, processed meat, MSG, aspartame, excessive caffeine (>200 mg/day), and alcohol (especially red wine) are common triggers. However, these do not apply to all patients, so use your diary to identify personal triggers.
4. Prevent dehydration: Consume 1.5–2 L of fluid daily; increase intake after salty foods. Simple dehydration is a trigger in approximately 15% of dizziness patients.
5. Evidence-based supplements: Magnesium (glycinate 400–600 mg/day), riboflavin (B2, 400 mg/day), and CoQ10 (300 mg/day) show migraine preventive effects and are applicable to vestibular migraine. However, pregnant women and those with renal disease should consult their physician before starting.
Pharmacological Treatment: During attacks, triptans (sumatriptan, zolmitriptan) are effective in some patients, but consistent evidence is lacking. Preventive medications include beta-blockers (propranolol), antiepileptics (topiramate), calcium channel blockers (flunarizine), and recently, CGRP monoclonal antibodies (erenumab, galcanezumab, fremanezumab), which show significant benefit in chronic and refractory cases. Vestibular rehabilitation therapy (VRT) provides adjunctive benefit in reducing residual floating sensation.
Red Flag Symptoms Requiring Immediate Emergency Care
Sudden onset of the worst dizziness or headache in lifetime (thunderclap headache)
Unilateral paralysis, facial asymmetry, dysarthria, diplopia, or visual field defect occurring simultaneously with dizziness
Decreased consciousness, syncope, or convulsions
Newly onset dizziness or headache after age 50
High fever with neck stiffness
Progressive worsening of dizziness after recent head trauma
These symptoms suggest secondary causes such as stroke, subarachnoid hemorrhage, encephalitis, or traumatic hemorrhage, requiring immediate emergency care (call 911 or visit an emergency department).
Conclusion
Vestibular migraine is an easily overlooked diagnosis—even by both patients and physicians—because “it can be a migraine even without much headache.” If you experience recurrent dizziness without auditory symptoms, and have a family history of migraine or accompanying photophobia/phonophobia, consult a neurologist to confirm ICHD-3 diagnostic criteria. Accurate diagnosis alone can reduce unnecessary tests and medications while significantly improving quality of life.
This article provides general medical information and does not substitute for diagnosis and treatment of individual patients. If symptoms persist or worsen, please consult a neurologist.
From the textbook. Chapter 13, “Vestibular Migraine,” of my clinical textbook Headache Medicine covers this topic in full for doctors, with the evidence and decision pathways behind it. About the book →