Migraine’s Link to Auditory Disorders and Hearing

A significant review in the *Journal of Neurology* clarifies that migraine is far more than a headache disorder; it is a systemic condition of multisensory sensitization with profound and common effects on hearing. According to the analysis by Xu, Zhai, Chen, and their colleagues, 15% to 49% of people with migraine experience comorbid auditory symptoms, including sensorineural hearing loss, tinnitus, and hyperacusis. Nearly two-thirds show measurable abnormalities on auditory electrophysiological tests. The paper, published in 2026, synthesizes current evidence to move beyond simple comorbidity and explain the underlying mechanisms connecting migraine to auditory dysfunction.

### A Three-Axis Model Explains the Brain-Ear Link

The review by the Huazhong University team proposes that migraine-related auditory dysfunction results from a “peripheral-to-central continuum” across three interacting biological axes. This model explains why auditory symptoms are not just coincidental but are often a direct product of the migraine process.

The first axis involves **anatomical and hydrodynamic vulnerabilities**. Structures shared by the brain and inner ear, like fine blood vessels and fluid channels, are susceptible to the vascular and pressure changes of a migraine attack. This can lead to localized microvascular ischemia in the cochlea and disrupt the delicate exchange of brain-ear fluids, potentially damaging hair cells and auditory nerve function.

The second axis centers on **localized neurochemical imbalances** within the inner ear microenvironment. Migraine pathways involve glutamate excitotoxicity, neuropeptide signaling (like CGRP), and innate immune activation. These same processes can spill over into the cochlea, disrupting its homeostasis and contributing to inflammation and cellular stress that underlie hearing loss and tinnitus generation.

The third and perhaps most significant axis is **central sensitization**. This is a state where the brain’s pain and sensory processing networks become hyper-excitable and remain on high alert. In the auditory system, this manifests as impaired efferent gating (the brain’s ability to filter out irrelevant sound signals) and thalamocortical dysrhythmia—a disruption in the rhythmic communication between the thalamus and cortex linked to tinnitus perception. This central hypersensitivity helps explain conditions like hyperacusis and misophonia, where normal sounds are perceived as intolerably loud or emotionally charged. This concept of central network plasticity is also explored in our article on PTSD and Tinnitus: Shared Symptoms and Brain Links.

### From Mechanism to Management: A New Therapeutic Framework

A major contribution of this review is its organization of treatment strategies according to the specific clinical objective derived from the three-axis model. This moves away from a one-size-fits-all approach.

**Blocking upstream migraine pathways** is the first strategy. This includes using established and new migraine medications, such as CGRP monoclonal antibodies, to prevent the neurochemical cascade before it affects the auditory system. By treating the migraine disorder systemically, downstream auditory symptoms may be alleviated.

The second objective is **protecting the cochlear microenvironment**. This involves investigating “oto-protective” agents that could shield the inner ear from the excitotoxic and inflammatory damage driven by migraine processes. Research into Otoactive Compounds and Targets for Hearing Health is directly relevant to this therapeutic goal.

The third objective is **correcting central hypersensitivity**. Treatments here aim to recalibrate the hyperactive auditory brain networks. Options include certain forms of cognitive behavioral therapy, sound therapy, and neuromodulation techniques. For instance, approaches like Cervical Stimulation for Tinnitus and Hearing Disorders or vagus nerve stimulation aim to restore normal neural rhythms and reduce auditory gain. The success of such behavioral interventions can depend on an individual’s psychological profile, a factor highlighted in research on CBT-I Outcomes: Baseline Depression Predicts Long-Term Results from sleepscience.space.

### Practical Implications for Patients and Clinicians

The findings have direct implications for clinical practice and patient awareness. For the estimated 15-49% of migraine patients with auditory symptoms, understanding that their tinnitus or sound sensitivity is likely part of their migraine phenotype can be validating. It moves these symptoms out of the realm of the unexplained and into a treatable framework.

For clinicians, particularly audiologists, neurologists, and ENT specialists, the review argues for more integrated assessment. A patient presenting with tinnitus or hyperacusis should be screened for migraine history. Conversely, migraine patients should be asked about hearing changes and sound tolerance. Standardized audiological assessment protocols, including electrophysiological tests like auditory brainstem responses, could help with early identification and phenotyping.

Ultimately, the work by Xu et al., accessible via PMID 42371148, provides a coherent scientific narrative that connects disparate symptoms. It makes a strong case for cross-disciplinary management, where migraine treatment and auditory health are addressed not in isolation, but as interconnected parts of the same multisensory condition. Future research focused on validating these mechanistic links will be essential for developing more precise and effective therapies.