Alcohol’s Impact on Hearing and Balance Disorders

A systematic review of human clinical studies confirms a link between alcohol use disorder and measurable damage to the hearing and balance systems. The analysis, led by researchers Jiann-Jy Chen, Chih-Wei Hsu, and Brendon Stubbs, found that while the neurological and systemic harms of chronic heavy alcohol use are well-documented, its specific effects on audiovestibular function have been unclear and scattered. Their work brings this evidence together for the first time, highlighting a clear association but also significant gaps in understanding.

How the Evidence Was Gathered and Analyzed

The research team followed the PRISMA 2020 guidelines for systematic reviews, registering their protocol in the PROSPERO database. They searched five major scientific databases—PubMed, Embase, ClinicalKey, Web of Science, and ScienceDirect—for all relevant human primary clinical studies from their inception until February 4, 2026. After screening, only 12 studies met the strict inclusion criteria. A major challenge was the high heterogeneity among the studies; they varied widely in design, clinical context, and how outcomes were measured. This prevented a formal meta-analysis. Instead, the authors performed a structured qualitative synthesis to summarize the patterns and strength of the existing evidence.

Auditory Dysfunction: A Clear Pattern of Hearing Loss

The most consistent finding across the review was objective auditory dysfunction. The evidence points to alcohol use disorder being associated with sensorineural hearing impairment. This type of hearing loss involves damage to the inner ear (cochlea) or the nerve pathways to the brain, and it is typically permanent.

Frequently, the hearing loss showed a high-frequency pattern. This means sounds like children’s voices, birdsong, or certain consonants in speech become harder to hear first. This pattern is significant because it mirrors other types of ototoxic (ear-damaging) and neurotoxic injuries. The finding moves beyond anecdotal reports to confirm that chronic alcohol exposure can be directly toxic to the delicate structures of the auditory system.

Vestibular Findings: Less Specific but Present

The review also identified evidence linking alcohol use disorder to vestibular dysfunction, which governs balance and spatial orientation. However, this evidence was less robust and less specific than that for hearing loss. Reports varied from descriptions of full clinical syndromes (like dizziness and vertigo) to broad classifications of “peripheral” or “central” vestibular lesions. Some older studies used now-outdated nystagmography techniques to document abnormal eye movements related to balance system disruption.

The lack of specificity makes it difficult to pinpoint the exact mechanism. Damage could occur in the vestibular nerve in the inner ear, the brainstem’s balance processing centers, or the cerebellum, a brain region known to be highly sensitive to alcohol and involved in motor coordination and sensory integration.

Treatment Evidence is Extremely Limited

Perhaps the most sobering finding from the review is the stark lack of evidence for direct treatments. The researchers found no established, disease-specific therapy for alcohol-related hearing or balance loss. The only treatment note with supporting evidence was for thiamine (vitamin B1) replacement in patients presenting with alcohol-related Wernicke’s spectrum disorders—a neurological condition caused by thiamine deficiency where hearing or balance symptoms may be part of a larger clinical picture. In these cases, addressing the deficiency can lead to improvement.

This therapeutic gap underscores that prevention and management of the underlying alcohol use disorder remain the primary approaches. For persistent symptoms like tinnitus or hyperacusis that may co-occur with hearing loss, patients might explore established management strategies such as Tinnitus Retraining Therapy or tinnitus management counseling, though these were not studied in the context of alcohol use in this review.

Practical Implications: Awareness, Not Yet Algorithms

The conclusions of Chen, Hsu, and Stubbs are measured. The current human clinical evidence supports heightened awareness among healthcare providers. Audiologists, neurologists, and primary care physicians should consider a history of alcohol use disorder as a potential contributing factor when patients present with unexplained sensorineural hearing loss or balance complaints.

However, the evidence is not yet strong or standardized enough to recommend specific screening algorithms for these patients or to propose targeted therapeutic recommendations beyond standard care for the addiction and nutritional support. The authors explicitly call for better prospective cohort studies that use contemporary, phenotype-based audiovestibular assessments to define the relationship more clearly and explore potential interventions.

This research, published in the International Journal of Molecular Sciences (DOI: 10.3390/ijms27093905), provides a crucial foundation. It consolidates a signal that has been in the medical literature for decades into a clear, evidence-based statement: alcohol use disorder can damage hearing and balance systems, and this area needs more focused research attention.