If you hear a sound that nobody else can hear, and there’s no external source producing it, that’s tinnitus. About 10% of U.S. adults experience it in any given year, and roughly 10% of people worldwide develop a chronic form lasting longer than three months. The sound can vary widely from person to person, which is why many people aren’t sure whether what they’re hearing “counts.”
What Tinnitus Sounds Like
Ringing is the most commonly reported sound, but tinnitus takes many forms. You might hear buzzing, roaring, whistling, humming, clicking, hissing, or squealing. The sound can be soft or loud, low-pitched or high-pitched, and it may show up in one ear, both ears, or seem to come from inside your head. For some people it’s constant. For others it fades in and out over hours or days.
A less common form, called pulsatile tinnitus, produces a rhythmic whooshing or thumping that matches your heartbeat. This type is distinct because it usually has a physical cause, often related to blood flow near the ear. Conditions like high blood pressure, narrowed arteries, or malformed blood vessels can make blood move with enough force to create an audible pulse. Unlike standard tinnitus, a doctor can sometimes hear pulsatile tinnitus during an exam with a stethoscope.
Temporary Versus Chronic Tinnitus
Almost everyone has experienced a brief episode of ringing after a loud concert, a night out, or even a quiet room where you suddenly notice a faint tone. This is usually temporary. After noise exposure, the ears can take anywhere from minutes to several weeks to recover, with most short-lived episodes resolving within hours to days. If the sound sticks around past 30 days, it’s more likely to be permanent.
Chronic tinnitus is generally defined as lasting more than three months. About 2% of adults experience a severe form that significantly affects daily life. The prevalence also increases with age: a large population study of adults aged 48 to 92 found that 8.2% had tinnitus at baseline, and another 5.7% developed it over the following five years.
Common Causes and Triggers
The single biggest contributor is noise-induced hearing loss. There’s a strong, well-documented correlation between permanent hearing damage from noise and ongoing tinnitus. But hearing loss from any cause, including aging, can trigger it. When the tiny hair cells inside your inner ear are damaged, the brain sometimes fills in the missing input with phantom sound.
Medications are another frequent trigger. Common over-the-counter painkillers like aspirin, ibuprofen, and naproxen can cause or worsen tinnitus, especially at higher doses. So can certain antibiotics, blood pressure medications (particularly loop diuretics, beta blockers, and ACE inhibitors), some antidepressants, and chemotherapy drugs. In many cases, tinnitus from medication improves after stopping or adjusting the dose.
Physical tension in the head and neck can also play a role. In one study, 78% of tinnitus patients could change the volume or pitch of their tinnitus by moving their head, neck, or jaw. Clenching the jaw was the most reliable trigger: 90% of those who could modulate their tinnitus reported it got louder with a jaw clench, and over a quarter said it tripled in loudness. People with TMJ disorders, neck injuries, or chronic teeth grinding often notice their tinnitus fluctuates with muscle tension. This type tends to appear on the same side as the physical problem and can occur even with normal hearing.
How Tinnitus Is Diagnosed
There’s no single test that detects tinnitus directly, because the sound exists only in your perception. Instead, diagnosis starts with a hearing test called pure tone audiometry, which maps your hearing thresholds across different pitches. This is the foundation of a tinnitus evaluation because it reveals whether hearing loss is contributing to what you’re experiencing. Most people with tinnitus have at least some degree of measurable hearing loss, even if they haven’t noticed it.
If needed, your audiologist or ENT specialist may also perform tympanometry, a quick pressure test that checks how well your eardrum and middle ear are functioning. This can identify problems like fluid buildup, Eustachian tube dysfunction, or other middle ear issues that could be causing the sound. Beyond these core tests, more specialized assessments are typically reserved for specific situations rather than used routinely.
For pulsatile tinnitus, imaging studies like an MRI or angiogram may be ordered to examine the blood vessels near your ear.
Gauging How Much It Affects You
Tinnitus ranges from a minor background noise to something that disrupts sleep, concentration, and emotional well-being. Clinicians often use the Tinnitus Handicap Inventory, a 25-question survey scored from 0 to 100, to measure its impact. A score of 0 to 16 means little to no effect on daily life. Scores of 18 to 36 indicate mild difficulty, 38 to 56 moderate, 58 to 76 severe, and 78 to 100 catastrophic. You can find versions of this questionnaire online to get a rough sense of where you fall, which can also be useful information to bring to a medical appointment.
Signs That Need Prompt Attention
Most tinnitus is not dangerous, but certain patterns warrant fast medical evaluation. Sudden pulsatile tinnitus that appears out of nowhere can signal a vascular problem and should be assessed in an emergency department. Tinnitus that starts after a head or neck injury raises concern for a skull fracture and also needs immediate evaluation.
If your tinnitus comes with sudden hearing loss (developing over 72 hours or less within the past month), that’s considered an ear emergency. Treatment with corticosteroids needs to begin before specialist assessment, so getting seen within 24 hours matters. Tinnitus accompanied by sudden neurological symptoms like facial weakness, severe vertigo, or difficulty speaking could indicate a stroke and requires immediate care.
Persistent tinnitus in only one ear, without any of these urgent signs, still deserves a routine hearing test and medical review. Bilateral tinnitus (both ears) without other symptoms is less concerning but can still benefit from evaluation if it bothers you. And if tinnitus is significantly affecting your mental health or causing thoughts of self-harm, reaching out to a crisis service is the right first step.