Migraine’s Link to Hearing Disorders and Tinnitus

A systemic disorder of multisensory sensitization, migraine is linked to a spectrum of auditory symptoms that affect up to half of all patients. A 2026 review in the *Journal of Neurology* synthesizes the evidence, arguing that sensorineural hearing loss, tinnitus, and hyperacusis are not mere comorbidities but direct otologic phenotypes of the migraine disease process. The authors, led by Xu, Zhai, and Chen, propose a new framework for understanding the connection, moving beyond association to explain the biological mechanisms at play.

How Common Are Auditory Symptoms in Migraine?

The epidemiological data is striking. The review reports that between 15% and 49% of individuals with migraine present with one or more auditory symptoms. These are not vague complaints; nearly two-thirds (approximately 65%) of migraine patients demonstrate objective auditory electrophysiological abnormalities, measurable through clinical tests. This indicates that the auditory dysfunction is a common, real, and often measurable component of the migraine experience, though it is frequently overlooked in standard clinical evaluations.

The Three-Axis Pathophysiological Model

The researchers propose that migraine-related auditory dysfunction arises from a “peripheral-to-central continuum” involving three interacting systems.

1. Anatomical and Hydrodynamic Vulnerabilities

The first axis involves the physical and fluidic environment of the inner ear. Specific anatomical features may create localized vulnerabilities. The review suggests these can lead to microvascular ischemia—tiny reductions in blood flow—and aberrant exchange of brain and inner ear fluids. This disruption of the delicate cochlear microenvironment is a potential starting point for auditory symptoms.

2. Local Neurochemical Imbalance

Within this vulnerable environment, a cascade of chemical events unfolds. The paper highlights glutamate excitotoxicity, where an excess of this neurotransmitter damages delicate hair cells and neurons. Signaling by neuropeptides like calcitonin gene-related peptide (CGRP), a key player in migraine, and activation of the innate immune system further disrupt inner ear homeostasis, creating a state of local inflammation and stress.

3. Central Sensitization and Network Dysfunction

This peripheral dysfunction feeds into and is amplified by the third axis: central sensitization. Migraine is characterized by a hypersensitive nervous system. In the auditory domain, this manifests as impaired efferent gating—the brain’s ability to filter out irrelevant sounds—and thalamocortical dysrhythmia, where the rhythmic communication between the brain’s auditory relay station and its cortex becomes disordered. This is the mechanism thought to underpin the persistent perception of sound in tinnitus and the lowered tolerance to sound in hyperacusis. You can read more about the shared neuroscience of such central conditions in our article on PTSD and Tinnitus.

Current Clinical Challenges and a New Framework

A significant barrier to care identified in the review is the variable approach to audiological assessment in migraine patients. Without standardized protocols, symptoms go under-identified. Furthermore, treatment data is “dispersed,” meaning evidence for interventions is scattered across different specialties and study types, making it difficult for clinicians to form a coherent management plan.

To address this, Xu, Zhai, and Chen categorize therapeutic strategies by their specific clinical target:

• Blocking Upstream Migraine Pathways: Using established or novel migraine medications (e.g., CGRP antagonists) to prevent the entire cascade.
• Protecting the Cochlear Microenvironment: Investigating agents that could reduce excitotoxicity, inflammation, or vascular instability directly in the inner ear.
• Correcting Central Hypersensitivity: Employing sound therapy, cognitive behavioral therapy, or neuromodulation techniques to retrain the hyperactive central auditory networks. This approach aligns with strategies discussed for related conditions like misophonia management.

Practical Implications for Patients and Clinicians

For patients with migraine, this research validates that auditory symptoms are a real, biologically grounded part of their condition. It argues for more comprehensive hearing health checks as part of migraine management. Patients should feel empowered to specifically describe sounds, sensitivity, or hearing changes to both their neurologist and an audiologist.

For clinicians, the review is a call for cross-disciplinary collaboration. Neurologists, otolaryngologists, and audiologists need to share a common understanding of this link. Standardized screening questions and a basic set of audiological tests for migraine patients could improve early identification. Treatment should be integrated; for example, the effectiveness of a new migraine drug on a patient’s tinnitus should be monitored, just as sound therapy for hyperacusis should be considered within the context of their migraine cycle. The connection between sensory disorders is complex, as seen in the overlap with temporomandibular disorders and ear symptoms.

The work by Xu, Zhai, Chen, and colleagues, published as Migraine and auditory dysfunction: beyond comorbidity (PMID: 42371148), shifts the narrative. It moves auditory symptoms from the periphery to the core of migraine pathology. By outlining a clear three-axis model, it provides a roadmap for future research to validate these mechanisms and for clinicians to develop precise, effective, and integrated management strategies for their patients.