Farid Zaripov
Tinnitus is the perception of sound with no external source — ringing, hissing, buzzing, humming or a tone that seems to sit inside the head. Around 10–15 % of adults experience it, and for most of them it is intermittent and unbothersome. For a smaller group it is constant and genuinely disruptive.
This article explains how tinnitus is described and measured. It is not medical advice, and the situations listed under "when to see a doctor" are the ones to act on rather than research.
It Is a Symptom, Not a Disease
Tinnitus is a sign that something in the auditory pathway has changed, in the same way that a fever indicates infection rather than being one. The most widely accepted explanation is that when hair cells in the cochlea stop responding at certain frequencies, the brain receives no input in that band and compensates by increasing its own gain — turning up the amplifier on a dead channel. The perceived sound is that amplified neural activity, which is why tinnitus is usually generated centrally, in the brain, even when the initial damage was in the ear.
Two consequences follow from this. First, the pitch of the tinnitus commonly sits near the frequency region where hearing is worst. Second, "curing" it by treating the ear alone rarely works once the pattern is established.
Common Causes
- Noise exposure. The most common cause overall — concerts, power tools, firearms, headphones at high volume. A single loud event can produce temporary tinnitus; repeated exposure produces permanent damage.
- Age-related hearing loss. High-frequency sensitivity declines with age and tinnitus often accompanies it.
- Earwax or middle ear problems. One of the few genuinely reversible causes.
- Medication. High-dose aspirin, some antibiotics, certain diuretics and some chemotherapy drugs are ototoxic; some effects reverse when the drug stops.
- Jaw and neck problems. Temporomandibular joint dysfunction and neck injury can produce or modulate tinnitus. A telling sign is that clenching the jaw or moving the neck changes it.
- Blood pressure and vascular factors, particularly in pulsatile tinnitus that beats in time with the heart.
- Ménière’s disease, which combines tinnitus with vertigo and fluctuating hearing loss.
Subjective and Objective
Subjective tinnitus — over 99 % of cases — is audible only to the person experiencing it. Objective tinnitus is rare and produced by an actual physical sound inside the body, such as turbulent blood flow or muscle spasm in the middle ear, which a clinician can sometimes hear with a stethoscope. The distinction matters because objective tinnitus has a physical cause that can often be found and treated.
Describing It: Pitch and Loudness Matching
Audiologists characterize tinnitus by asking the person to match it against generated tones, which produces two numbers:
- Pitch match — the frequency of a tone that most closely resembles the tinnitus. Most commonly between 3 and 8 kHz, frequently near the region of greatest hearing loss.
- Loudness match — the level at which a tone at that frequency subjectively equals the tinnitus. Typically only 5–15 dB above the hearing threshold at that frequency, which is a surprisingly small number given how intrusive it feels. Perceived intrusiveness correlates poorly with measured loudness and strongly with attention and distress.
You can approximate the pitch match yourself by sweeping a tone until it resembles the sound you hear. A tinnitus frequency test does this in the browser and gives you a figure to bring to an appointment — useful preparation, not a diagnosis. Two caveats: describing tinnitus is genuinely difficult when it is a hiss rather than a tone, and octave confusion is common, so it is worth checking the octave above and below whatever seems to match.
Because tinnitus so often tracks hearing loss, a threshold check across frequencies is the more informative companion measurement. An online hearing screening shows the general shape of your sensitivity, though it depends heavily on the headphones and the room and cannot replace calibrated audiometry.
When to See a Doctor
Most tinnitus is not urgent. These situations are:
- Sudden onset in one ear, especially with hearing loss — sudden sensorineural hearing loss is treated as an emergency, and the window in which treatment helps is measured in days.
- Pulsatile tinnitus that beats in time with your heartbeat — needs vascular investigation.
- One-sided tinnitus that persists, which warrants ruling out structural causes.
- Accompanied by vertigo, facial weakness or severe headache.
- After a head injury.
- Causing insomnia, anxiety or depression — the psychological impact is treatable even when the sound is not.
What Actually Helps
There is no drug that reliably eliminates tinnitus. What has evidence behind it targets the response to the sound rather than the sound itself:
Sound therapy
Adding gentle background sound — broadband noise, rain, fan noise — reduces the contrast between tinnitus and silence, which is why tinnitus is loudest in a quiet bedroom. This does not mask it into inaudibility so much as give the auditory system something else to attend to.
Hearing aids
Where hearing loss is present, amplification frequently reduces tinnitus substantially. It restores input in the frequency region the brain was compensating for, which addresses the mechanism rather than the symptom.
Cognitive behavioral therapy
The best-evidenced intervention. It does not change the sound; it changes the distress, the attention paid to it, and the sleep disruption. Measured outcomes on quality of life are consistently better than for any pharmacological approach.
Tinnitus retraining therapy
Combines counselling with sound enrichment over 12–24 months, aiming at habituation — the state where the sound is still present but no longer noticed, in the way you stop hearing a refrigerator.
Protecting what remains
Further noise exposure makes both hearing loss and tinnitus worse. Hearing protection in loud environments is preventive, and it is the one factor entirely under your control. Note that over-protection is counterproductive: sustained silence and earplug use in ordinary environments increase central gain and can make tinnitus more prominent.
Things That Do Not Work
- Ginkgo biloba, zinc and most supplements — trials consistently show no benefit over placebo.
- "Tinnitus cure" frequencies and notched-audio products sold online. Notched sound therapy has some research interest for tonal tinnitus, but the commercial products promising elimination are not supported by evidence.
- Silence. Retreating into quiet rooms increases perceived loudness. Enrichment beats avoidance.
- Waiting for it to go away. Acute tinnitus after noise exposure often does resolve; chronic tinnitus responds better to early management than to years of endurance.
Prevention, Which Is the Only Reliable Part
Noise damage is cumulative and permanent. The dose depends on both level and duration — 85 dB is generally considered safe for eight hours, and every 3 dB increase halves the safe time, so 100 dB is safe for around fifteen minutes. Concerts routinely reach 100–110 dB.
- Wear protection at concerts, in workshops and around power tools. Musicians’ earplugs attenuate evenly rather than muffling.
- Keep headphones below about 60 % of maximum, and take breaks.
- Treat temporary ringing after a loud event as a warning: it means hair cells were stressed.
- Get hearing checked periodically if you are regularly exposed.
