Hyperacusis — What It Is, Symptoms, Evaluation and Treatment

The sound of a grocery store felt overwhelming. A conversation in a restaurant was painful. Running the dishwasher became something to avoid. For patients with hyperacusis, these are not exaggerations — they are the daily reality of a condition that turns ordinary environmental sound into an experience of genuine discomfort, pain, or fear. And for most patients, the hardest part is not the condition itself — it is being told, repeatedly, that their hearing test is normal and that nothing appears to be wrong.

Hyperacusis is real, clinically recognized, and significantly underdiagnosed. Understanding what it is, what causes it, how it is properly evaluated, and — critically — what not to do in response to it is essential for anyone who suspects they or a loved one may be affected.

What Is Hyperacusis?

Hyperacusis is a disorder of reduced sound tolerance — a condition in which everyday sounds that most people find unremarkable are perceived as uncomfortably loud, painful, or deeply distressing. It is not simply being sensitive to loud noises. Patients with hyperacusis often experience significant discomfort from sounds that fall well within the range of normal everyday environmental volume — a telephone ringing, cutlery on a plate, a child's laughter, a car door closing, or background conversation in a café.

The condition has perceptual, psychological, and social dimensions. It is not purely an auditory phenomenon — the brain's processing of and emotional response to sound plays a central role in its development and maintenance. Research presented at the International Conferences on Hyperacusis has consistently identified functional changes within the central nervous system — particularly increased gain in the central auditory pathways and heightened emotional reactivity to sound — as core mechanisms underlying the condition.

Hyperacusis frequently coexists with tinnitus — research suggests that the majority of people with hyperacusis also experience some form of tinnitus, though the two conditions can and do occur independently. The presence of tinnitus alongside hyperacusis does not mean one caused the other, but the overlap is clinically important and shapes the evaluation and management approach.

The Different Types of Hyperacusis

Not all hyperacusis presents the same way. Clinicians recognize several distinct subtypes, and identifying which type — or combination of types — a patient experiences is an important part of assessment.

Loudness hyperacusis is the most commonly recognized form. Everyday sounds feel disproportionately loud — out of proportion to their actual decibel level. The patient is not mishearing the volume; the auditory system is genuinely amplifying the perceived intensity of incoming sound beyond what the objective level would predict.

Pain hyperacusis involves physical ear pain triggered by sound — a burning, aching, or stabbing sensation in the ear canal or surrounding structures in response to sounds that cause no physical discomfort in unaffected individuals. Pain hyperacusis is among the more severe presentations and can significantly limit a patient's ability to participate in ordinary social and professional life.

Annoyance hyperacusis manifests primarily as extreme irritability or anger in response to specific sounds — a pattern that overlaps with misophonia, which is discussed below. The emotional response is disproportionate to the sound's actual characteristics and is distressing to the patient and often to those around them.

Fear hyperacusis involves anxiety, panic, or avoidance behavior triggered by anticipation of or exposure to sound. Patients develop anticipatory dread of environments they associate with problematic sound experiences, which progressively narrows their social world and contributes to anxiety and depression.

How Common Is It — and Who Gets It?

Hyperacusis affects people across all age groups — children and adults — and its prevalence is likely higher than historically recognized because many patients go undiagnosed or are dismissed without a thorough evaluation. The condition does not discriminate by hearing status — many patients with hyperacusis have completely normal pure-tone audiograms, which contributes to the diagnostic challenge and the frustrating experience of being told nothing is wrong.

A number of conditions are associated with elevated hyperacusis risk including autism spectrum disorder, post-traumatic stress disorder, migraine disorders, anxiety disorders, Lyme disease, Williams syndrome, Bell's palsy, and temporomandibular joint dysfunction. Hyperacusis can also develop following acoustic trauma — including a single significant noise exposure event such as a gunshot, explosion, or particularly loud concert — as well as following certain viral infections affecting the inner ear or facial nerve, and as a side effect of certain medications.

Hyperacusis vs. Misophonia — Understanding the Difference

Hyperacusis and misophonia are frequently confused — and in some cases coexist — but they are clinically distinct conditions that require different management approaches.

Hyperacusis involves a generally reduced tolerance to sound across many types of environmental noise. The problem is with sound volume and intensity — sounds feel too loud or physically painful regardless of their source or context.

Misophonia involves an intense negative emotional reaction — typically rage, disgust, anxiety, or panic — triggered by specific sounds that are most often human-generated: chewing, breathing, clicking, sniffling, or other repetitive sounds. In misophonia the primary response is emotional and visceral rather than perceptual. The sound does not feel too loud — it triggers an overwhelming and involuntary emotional response that is specific to the trigger sound.

A patient can have hyperacusis alone, misophonia alone, or both simultaneously. Accurate differential assessment by a clinician experienced in both conditions is essential for selecting the right treatment approach, as management strategies differ between them.

How Hyperacusis Is Evaluated

A proper hyperacusis evaluation goes beyond the standard pure-tone audiogram and includes several components that together produce an accurate and comprehensive picture of the condition.

Comprehensive case history. Understanding the onset, pattern, severity, and impact of sound sensitivity is essential. The clinician will ask about what sounds trigger symptoms, how those symptoms present, what situations are avoided, what medical history may be relevant, and how the condition is affecting daily life, social engagement, and mental health.

Standard audiometry. Pure-tone air and bone conduction testing establishes whether hearing loss is present and characterizes its type and degree. While many hyperacusis patients have normal hearing thresholds, some have concurrent sensorineural hearing loss — and knowing the audiometric profile shapes the management approach.

Loudness Discomfort Level (LDL) testing. This is the primary audiological measure specific to hyperacusis. LDL testing identifies the sound levels at which tones become uncomfortable across the frequency range. In patients with hyperacusis, discomfort thresholds are significantly reduced — meaning they experience discomfort at sound levels that unaffected individuals would find entirely comfortable. LDL testing provides objective documentation of the condition's severity and establishes a baseline for tracking treatment progress.

Validated questionnaires. Standardized tools including the Hyperacusis Impact Questionnaire (HIQ) and the Sound Sensitivity Symptoms Questionnaire (SSSQ) assess the type, severity, and daily-life impact of sound sensitivity in a structured, validated format. These questionnaires provide clinically meaningful data about how hyperacusis is affecting the patient's life — information that shapes both the urgency and direction of treatment.

Tinnitus assessment. Given the high coexistence of tinnitus and hyperacusis, a thorough tinnitus evaluation is typically incorporated when both conditions are present — since treatment often addresses both simultaneously.

The Most Important Thing About Treatment — Why Avoidance Makes It Worse

This is the clinical insight that most patients with hyperacusis have never been told — and it is perhaps the most important thing to understand about the condition before embarking on any management approach.

The instinctive response to hyperacusis is avoidance. Avoid the grocery store. Wear earplugs everywhere. Stop going to restaurants. Reduce sound exposure as much as possible. For a condition that causes genuine discomfort and pain in response to sound, avoidance feels rational — even necessary.

It is counterproductive. And over time, it makes the condition significantly worse.

The auditory system is a dynamic, adaptive system. When it is consistently shielded from ordinary sound — through chronic earplugging, avoidance of environments, or reduction of everyday noise exposure — it responds by increasing its own sensitivity. The central gain that already underlies hyperacusis is further amplified by the absence of sound input. The patient who wears earplugs in a grocery store to manage discomfort may find that over months, they need earplugs in quieter and quieter environments as the threshold of what feels tolerable continues to drop.

The evidence-based treatment of hyperacusis moves in the opposite direction — gradual, structured, supported reintroduction of sound to recalibrate the auditory system's sensitivity. This is not comfortable in the short term. But it is the approach that produces durable improvement.

Treatment Options

There is currently no pharmacological cure for hyperacusis. Treatment is focused on reducing its impact on daily life, gradually increasing sound tolerance, and addressing the psychological and emotional dimensions of the condition. The most effective approaches are typically delivered in combination.

Sound desensitization therapy. The cornerstone of hyperacusis treatment. A structured, gradual program of controlled sound exposure — typically using broadband noise generators or sound enrichment devices worn in the ears — slowly expands the range of sounds the patient can tolerate comfortably. The exposure level starts well below the threshold of discomfort and is increased incrementally over weeks to months as tolerance improves. 2024 research demonstrated that a combined therapy approach incorporating graduated sound exposure produced a 23.7 dB increase in tolerable sound exposure levels — a clinically significant improvement in sound tolerance.

Cognitive Behavioral Therapy (CBT). CBT addresses the psychological dimensions of hyperacusis — the anxiety, avoidance behavior, catastrophic thinking, and emotional reactivity that maintain and amplify the condition. The 2025 Tonndorf Lecture, a landmark annual address in audiology, confirmed CBT as one of the most evidence-supported psychological interventions for hyperacusis. CBT is delivered either with an audiologist, a psychologist, or in hybrid models that combine in-person and digital formats.

Tinnitus Retraining Therapy (TRT). When hyperacusis coexists with tinnitus, TRT — which combines directive counseling with sound therapy — addresses both conditions simultaneously. The counseling component helps patients understand and reframe their relationship with sound, while the sound therapy component begins the gradual desensitization process.

Acceptance and Commitment Therapy (ACT) principles. An emerging approach in hyperacusis management, ACT focuses on accepting the presence of discomfort without allowing it to dictate behavior — helping patients re-engage with avoided environments and activities while working through the desensitization process. Early research shows promising outcomes when ACT principles are integrated into sound therapy protocols.

Medical evaluation for underlying causes. Where a specific underlying condition — migraine disorder, Lyme disease, TMJ dysfunction, anxiety disorder — is identified as a contributing factor, addressing that condition medically is an important component of the overall management plan and may reduce the severity of hyperacusis directly.

Hyperacusis Evaluation at Haynie Audiology

At Haynie Audiology & Hearing Associates in Freehold, Dr. Alexandra Haynie, Au.D., CCC-A, ABA provides comprehensive audiological evaluations for patients presenting with sound sensitivity, reduced sound tolerance, and suspected hyperacusis — including LDL testing, case history, standardized questionnaires, and concurrent tinnitus assessment where appropriate. If you have been avoiding environments, wearing ear protection in ordinary daily situations, or experiencing pain or significant distress in response to everyday sounds — a comprehensive evaluation is the right starting point.

We serve patients throughout Monmouth County and the surrounding region — including patients from Manalapan, Marlboro, Howell, Middletown, Hazlet, and Red Bank. No referral required. Wednesday through Saturday at 31 West Main Street in downtown Freehold.