Understanding Tinnitus
What that ringing in your ear really means — causes, mechanisms, investigations, all available treatment options, and an interactive sound therapy tool to help you find relief.
Causes
How It Happens
Types
Investigations
Treatment Options
Sound Therapy (TRT)
When to See a Doctor
🔔 What is Tinnitus?
The perception of sound when no external sound source is present — one of the most common and distressing ENT symptoms worldwide.
Definition
Tinnitus is the conscious perception of a sound — ringing, buzzing, hissing, whistling, roaring, clicking, or pulsing — in one or both ears, or in the head, without any corresponding external sound source. It is a symptom, not a disease. Approximately 15–20% of people experience tinnitus at some point. In India, an estimated 40–50 million people are affected.
What Does Tinnitus Sound Like?
- Ringing — most commonly reported, high-pitched, often bilateral
- Buzzing or humming — lower frequency, often described as electrical
- Hissing or whistling — often associated with noise-induced hearing loss
- Roaring — characteristic of Menière’s disease, often fluctuating
- Pulsatile (whooshing, heartbeat-like) — synchronised with pulse; requires vascular investigation
🧩 Causes of Tinnitus
Tinnitus is a symptom with over 200 identified causes. Finding the cause is the first step toward effective treatment.
Ear-Related Causes
Wax Impaction
A blocked ear canal changes pressure dynamics and produces tinnitus. Removal often resolves it immediately.
Noise-Induced Hearing Loss
Prolonged loud noise damages outer hair cells in the cochlea. Most common cause in adults under 60.
Age-Related Hearing Loss
Progressive high-frequency loss after 50. The auditory cortex “turns up the gain” — generating tinnitus.
Menière’s Disease
Endolymphatic hydrops causes fluctuating roaring tinnitus, worse before and during vertigo attacks.
Otitis Media
Middle ear infections, effusion, or perforations alter sound transmission and generate tinnitus.
Otosclerosis
Abnormal stapes bone growth causing conductive hearing loss and low-frequency tinnitus. Surgically correctable.
Systemic Causes
Ototoxic Medications
Over 200 drugs cause tinnitus — aspirin, NSAIDs, aminoglycosides, cisplatin, loop diuretics.
Cardiovascular
Hypertension and carotid stenosis can cause pulsatile tinnitus synchronised with the heartbeat.
Acoustic Neuroma
Benign tumour on the vestibulo-cochlear nerve. Causes unilateral tinnitus with progressive SNHL.
Stress and Anxiety
Psychological states dramatically amplify tinnitus perception via the limbic system.
⚙️ How Tinnitus Happens
Tinnitus is generated and maintained by the brain — not just the ear.
Tinnitus Is a Brain Problem, Not Just an Ear Problem
The ear triggers it — but the brain generates and maintains it. This is why it persists after the ear problem is treated, and why stress and attention dramatically worsen it.
Cochlear Damage
Hair cells are damaged, reducing neural signals to the auditory brainstem at specific frequencies.
Auditory Cortex Turns Up the Gain
Deprived of input, the cortex increases sensitivity — generating spontaneous firing the brain interprets as sound.
Limbic Amplification
The emotional brain labels tinnitus as threatening — causing anxiety that massively amplifies perceived loudness.
Neuroplastic Reinforcement
The more attention paid, the stronger the neural pathways become. The brain prioritises the tinnitus signal.
Habituation — The Goal
TRT reclassifies tinnitus as neutral, allowing the brain to filter it — like the sound of your own breathing.
📋 Types of Tinnitus
Correct classification guides investigation and treatment.
| Type | Description | Key Feature | Common Cause |
|---|---|---|---|
| Subjective | Heard only by the patient | Most common (95%) | NIHL, presbycusis, Menière’s |
| Pulsatile | Rhythmic, synchronised with heartbeat | Requires urgent vascular workup | Hypertension, AVM, glomus tumour |
| Unilateral | One ear only | Always requires acoustic neuroma exclusion | Acoustic neuroma, Menière’s |
| Somatic | Modulated by jaw or neck position | Changes with jaw clenching | TMJ dysfunction, cervical spine |
| Acute | Onset within 3 months | Often treatable if caught early | Infection, sudden SNHL |
| Chronic | Persisting beyond 3–6 months | Neuroplastic changes established | NIHL, presbycusis, idiopathic |
🔬 Investigations
A systematic workup identifies treatable causes and guides management.
| Investigation | What It Assesses | Indicated When |
|---|---|---|
| Pure Tone Audiogram (PTA) | Hearing thresholds across all frequencies | Every patient — mandatory first step |
| Tympanometry | Middle ear pressure and eardrum compliance | All tinnitus patients |
| Tinnitus Pitch Matching | Identifies the frequency of your tinnitus | TRT planning |
| Tinnitus Loudness Matching | Quantifies loudness above hearing threshold | TRT calibration |
| BERA / ABR | Auditory brainstem response — neural integrity | Unilateral tinnitus |
| MRI IAM | Imaging to exclude acoustic neuroma | Unilateral tinnitus, progressive SNHL |
| Blood Tests | FBC, TSH, HbA1c, B12/D3 | All patients — screen for systemic causes |
| THI Questionnaire | Validated 25-item tinnitus handicap scoring | Every patient — grades severity |
💊 Treatment Options
Multiple highly effective strategies achieve significant relief or complete habituation in the majority of patients.
The Goal: Habituation
Habituation — teaching the brain to reclassify tinnitus as a neutral background signal — is the primary goal. Most patients achieve this within 12–18 months. The earlier treatment begins, the better the outcome.
Treat the Underlying Cause First
Wax Removal
Often curative
Microsuction or syringing frequently resolves tinnitus completely and immediately.
Treat Middle Ear Disease
Curative if early
Antibiotics, grommets, or tympanoplasty can resolve tinnitus from middle ear pathology.
Stop Ototoxic Medications
Often reversible
Stopping the offending drug often reduces tinnitus. Always discuss with your prescribing doctor.
Control Systemic Disease
Essential adjunct
Treating hypertension, anaemia, and thyroid disorders directly improves tinnitus in many patients.
Sound-Based Therapies
Tinnitus Retraining Therapy (TRT)
Gold Standard
Directive counselling combined with low-level broadband noise to promote habituation. 85% success rate in motivated patients over 12–18 months.
Notched Music Therapy
Neuroplasticity-Based
Music filtered to remove the tinnitus frequency band. Listen 1–2 hours daily. Best for tonal tinnitus with identifiable pitch.
Masking / Sound Enrichment
Immediate Relief
Environmental sound reduces the contrast between tinnitus and silence. Most helpful at night. Sound must be at or just below the tinnitus level.
Hearing Aids
When Hearing Loss Present
Amplify ambient sound and reduce sensory deprivation driving tinnitus. Recommended when PTA shows 25 dB or greater loss.
Psychological and Lifestyle
Cognitive Behavioural Therapy
Highest Evidence
Cochrane reviews confirm CBT significantly reduces tinnitus distress even without reducing loudness.
Mindfulness
Emerging Evidence
Teaches observation of tinnitus without judgement — breaking the limbic amplification cycle.
Sleep Hygiene
Critical
Tinnitus is universally worse when sleep-deprived. Sound enrichment at bedtime dramatically improves tinnitus-related insomnia.
Lifestyle
Foundation
- Always wear earplugs in loud environments
- Reduce caffeine and alcohol
- Stress management is non-negotiable
🎧 TRT Sound Therapy — Frequency Generator
Generate calibrated tones at your tinnitus frequency. Built on the Web Audio API — works directly in your browser.
How to Use This Tool
- Pitch matching: Select frequencies one by one to find which most closely resembles your tinnitus.
- TRT therapy: Select White Noise or Pink Noise and set volume just below where you can still hear your tinnitus.
- Always use headphones at low volume. Never use at high volume.
Understanding TRT — Tinnitus Retraining Therapy
| TRT Component | What It Does | Duration |
|---|---|---|
| Directive Counselling | Explains the neurophysiological model; removes fear; reclassifies tinnitus as neutral | Multiple sessions over 6–18 months |
| Sound Therapy | Low-level broadband noise at or below tinnitus level to promote habituation | 6–8 hours daily |
| Habituation of Reaction | Eliminating emotional distress response to tinnitus | Typically 6–12 months |
| Habituation of Perception | Tinnitus fades from conscious awareness | Typically 12–18 months |
| Outcome | 85% report significant improvement; 20% report tinnitus disappearing from awareness | Maintained long-term |
🚨 When to See a Doctor — Urgently
These warning signs always require prompt ENT assessment.
Seek Immediate ENT Assessment For:
- Sudden-onset tinnitus with hearing loss — medical emergency; treat within 24–48 hours
- Unilateral tinnitus — acoustic neuroma must be excluded with BERA and MRI
- Pulsatile tinnitus — vascular investigation mandatory
- Tinnitus with vertigo or balance problems
- Tinnitus with facial weakness — nerve involvement requires urgent imaging
- Tinnitus following head injury
- Tinnitus in children — always investigate
Suffering From Tinnitus? Let’s Find the Cause.
Dr. Pranshu Mehta provides comprehensive tinnitus evaluation including PTA, tympanometry, tinnitus pitch and loudness matching, and a personalised treatment programme at both clinic locations in Delhi.