If you hear a sound in your ears or head that no one else can hear and no external source is producing, you likely have tinnitus. It is not a disease itself but a symptom, and it is extremely common. The phantom sound can take many forms: ringing, buzzing, roaring, whistling, humming, clicking, hissing, or squealing. Some people hear a single steady tone, others hear multiple sounds, and some notice it only in quiet rooms while others can’t escape it even in noisy environments.
The key question isn’t really whether you have tinnitus. If you hear phantom sound, you do. The more useful questions are what kind you have, what’s causing it, how severe it is, and whether anything about it signals a problem that needs attention.
What Tinnitus Sounds Like
Most people describe a high-pitched ringing, but tinnitus is far more varied than that. You might hear a low hum, a buzzing like fluorescent lights, a roar like ocean waves, or a hiss like steam escaping. Some people hear clicking or a tone that shifts pitch over time. The sound can be in one ear, both ears, or seem to come from the center of your head.
There are two broad categories worth knowing about. The most common type produces a steady or fluctuating tone that only you can hear. It has no physical sound source inside your body. The second type, called pulsatile tinnitus, sounds like a rhythmic swooshing or whooshing that keeps pace with your heartbeat. People with pulsatile tinnitus are, in a sense, hearing their own blood flow. This distinction matters because pulsatile tinnitus is more likely to have an identifiable and sometimes treatable physical cause, such as changes in blood vessels near the ear.
Why Your Brain Creates Phantom Sound
Tinnitus usually starts in the ear but becomes a brain problem. When the tiny hair cells inside your inner ear are damaged by loud noise, aging, or other factors, they send abnormal electrical signals to the brain. The brain misinterprets these signals as sound.
Over time, something more complex happens. The auditory processing centers in the brain become hyperactive, firing even when no real sound is coming in. The brain essentially reorganizes its sound-processing map to compensate for the missing input, and this reorganization disrupts the normal balance between nerve signals that excite activity and those that calm it down. Inflammation in auditory processing areas contributes to this imbalance, reducing the brain’s ability to quiet those overactive signals.
This is why tinnitus often accompanies hearing loss but persists even after the initial damage is done. The brain has rewired itself. It also explains why tinnitus can feel worse during stress. Stress hormones amplify the same overactive nerve pathways, creating a cycle where tinnitus causes stress, and stress makes tinnitus louder. Brain areas responsible for attention, emotion, and memory also get pulled into the loop, which is why tinnitus can feel so intrusive even though the “volume” hasn’t objectively changed.
Common Causes and Triggers
Tinnitus is multifactorial, meaning several things can set it off or make it worse. The most common triggers include:
- Noise exposure: A loud concert, power tools without ear protection, or years of occupational noise can damage inner ear hair cells and trigger tinnitus that may be temporary or permanent.
- Age-related hearing loss: Gradual deterioration of the inner ear is one of the most common causes in people over 50.
- Medications: Certain drugs are known to cause or worsen tinnitus. High-dose aspirin and other common pain relievers like ibuprofen can trigger it temporarily. Some antibiotics, certain chemotherapy drugs, and loop diuretics (used for blood pressure and fluid retention) carry higher risk. With pain relievers and diuretics, the effect is usually temporary and resolves when you stop the medication. With certain antibiotics and chemotherapy drugs, the damage can be permanent.
- Jaw problems: Disorders of the jaw joint (temporomandibular disorders) can produce or worsen tinnitus because of shared nerve pathways between the jaw and ear.
- Vascular conditions: Blood vessel changes near the ear, including narrowing or turbulent flow, can produce pulsatile tinnitus.
- Other medical conditions: Ménière’s disease, earwax buildup, ear infections, and head or neck injuries can all cause tinnitus.
Smoking is another factor that rarely gets mentioned. It affects blood flow to the inner ear and is associated with worse tinnitus outcomes, yet this connection is often overlooked in primary care settings.
Temporary vs. Chronic Tinnitus
Almost everyone has experienced brief tinnitus after a loud event. That temporary ringing usually fades within hours or days. If it sticks around, the timeline matters. Tinnitus lasting less than three months is generally considered acute or subacute. Most clinical definitions consider tinnitus chronic once it has persisted for three to six months.
This doesn’t mean that if your tinnitus lasts a few weeks, it’s permanent. Many cases resolve on their own, especially if the trigger was temporary, like a medication, earwax buildup, or a single noise exposure. But tinnitus that has been present for several months is less likely to disappear entirely, because the brain changes underlying it become more established over time.
How Severity Is Measured
Because tinnitus is subjective, there’s no blood test or scan that shows how bad it is. Clinicians use questionnaires, the most common being the Tinnitus Handicap Inventory. It asks 25 questions about how tinnitus affects your daily life, emotions, and ability to concentrate, then produces a score from 0 to 100:
- 0 to 16: Slight or no impact
- 18 to 36: Mild impact
- 38 to 56: Moderate impact
- 58 to 76: Severe impact
- 78 to 100: Catastrophic impact
You can find versions of this questionnaire online and score yourself, which gives you a useful baseline. Many people with tinnitus fall in the slight-to-mild range and find it more of an annoyance than a disruption. Others score in the severe or catastrophic range, where tinnitus interferes with sleep, concentration, work, and emotional wellbeing. Where you fall on this scale is more important than the sound itself in determining what kind of help you might benefit from.
Signs That Need Prompt Attention
Most tinnitus is not dangerous, but certain features are red flags. Tinnitus in only one ear deserves attention because it can be a presenting sign of a benign growth on the hearing nerve (vestibular schwannoma) or Ménière’s disease. Pulsatile tinnitus that matches your heartbeat should be evaluated because it may reflect a vascular issue that’s identifiable on imaging.
Seek urgent evaluation if your tinnitus comes with any of the following: sudden hearing loss in one or both ears, facial weakness or numbness, severe dizziness or vertigo, persistent ear pain or drainage, or onset after a head injury. Sudden pulsatile tinnitus combined with facial paralysis or severe vertigo can indicate a serious condition affecting blood vessels or structures inside the skull, and this warrants emergency care.
What Happens During a Tinnitus Evaluation
If you visit an audiologist or ear, nose, and throat specialist, the first step is typically a hearing test. This identifies whether you have hearing loss and at which frequencies, which often correlates with the pitch of your tinnitus. The clinician will also examine your ears for physical causes like wax blockage or fluid behind the eardrum.
In rare cases (less than 1% of all tinnitus), a clinician can actually hear your tinnitus during the exam using a stethoscope. This is called objective tinnitus, and it’s caused by physical sources inside your body, typically blood flow turbulence or small muscle spasms near the ear. If your tinnitus is pulsatile, imaging studies may be ordered to look at blood vessels in the head and neck.
For the vast majority of people, tinnitus is subjective, meaning only you can hear it. That doesn’t make it less real. It simply means the evaluation focuses on characterizing the sound, measuring any associated hearing loss, and ruling out treatable underlying causes.
A Simple Self-Check
If you’re unsure whether what you’re experiencing is tinnitus, try this: sit in the quietest room in your home, ideally at night. Cover your ears with your palms. If you hear ringing, buzzing, humming, hissing, or any persistent sound that isn’t coming from your environment, that’s tinnitus. If the sound goes away when you’re in a moderately noisy environment and only appears in silence, you may have very mild tinnitus that many people live with without ever noticing. If the sound is present even in noisy settings, competes with conversation, or keeps you awake, it’s worth having evaluated.
Pay attention to whether the sound is in one ear or both, whether it pulses with your heartbeat, and whether it started suddenly or gradually. These details help determine what, if anything, needs to be investigated further.