Ringing in your ears, known as tinnitus, happens when your brain generates a sound that isn’t coming from the outside world. About 25 million American adults experience it in a given year, and nearly 10% develop a chronic form lasting more than three months. The sound can show up as ringing, buzzing, hissing, or clicking, and it almost always traces back to a change somewhere in your auditory system, from the delicate structures inside your ear to the way your brain processes sound signals.
What’s Happening Inside Your Ear and Brain
Deep inside your inner ear, thousands of tiny hair cells convert sound vibrations into electrical signals that travel to the brain. When those hair cells are damaged or destroyed, they stop sending signals properly. In humans, these cells don’t regenerate. Once they’re gone, they’re gone for good.
When the brain loses input from damaged hair cells, it doesn’t simply go quiet. Instead, neurons in the auditory system become hyperactive. The normal balance between excitatory and inhibitory signals gets disrupted, and neurons start firing on their own at higher rates. Groups of neurons also begin firing in sync with each other in the frequency range where hearing has been lost. Your brain interprets this spontaneous, synchronized activity as sound, even though no external sound is present. Think of it like a radio picking up static when it loses the station signal.
Noise Exposure Is the Most Common Cause
Loud sound is the single biggest reason people develop tinnitus. Sounds at or below 70 decibels (roughly the volume of a washing machine) are safe even with prolonged exposure. But repeated or extended exposure to sounds at 85 decibels or above, the level of heavy traffic or a loud restaurant, can kill hair cells and cause permanent damage. The louder the sound, the less time it takes. A rock concert at 110 decibels can do real damage in minutes.
Extremely loud bursts of sound, like gunshots or explosions, can cause immediate, permanent harm by rupturing the eardrum or damaging bones in the middle ear. This type of injury often brings on tinnitus that doesn’t fade.
Medications That Can Trigger It
Certain medications are “ototoxic,” meaning they can harm the structures responsible for hearing and balance. The most common culprits include high-dose aspirin, certain antibiotics (particularly macrolides like azithromycin when taken at high doses for extended periods), chemotherapy drugs like cisplatin, and loop diuretics used for heart failure and kidney disease. Some newer biologic drugs used in immunotherapy and gene therapy can also affect hearing.
In many cases, tinnitus from medication is reversible once you stop taking the drug or lower the dose. But with certain chemotherapy agents, the damage can be permanent. If you notice ringing after starting a new medication, that’s worth bringing up with your prescriber sooner rather than later.
Your Jaw Might Be Involved
If your tinnitus seems connected to jaw movement, chewing, or teeth grinding, the temporomandibular joint (TMJ) may be playing a role. Your jaw joint sits remarkably close to the structures of the middle ear, and the two share muscles, ligaments, and nerve pathways. When the jaw is misaligned or inflamed, that irritation can alter how sound is perceived, producing or worsening ringing. This type of tinnitus, sometimes called somatic tinnitus, often changes in pitch or volume when you move your jaw, clench your teeth, or turn your head. Treating the jaw problem frequently reduces the ear symptoms.
When Ringing Pulses With Your Heartbeat
Most tinnitus is a steady tone, but some people hear a rhythmic whooshing or thumping that matches their pulse. This is pulsatile tinnitus, and it has a fundamentally different cause. Instead of originating from nerve activity, it comes from actual blood flow near the ear.
Several conditions can produce this, including high blood pressure (which puts extra force on vessel walls near the ear), anemia (which increases overall blood flow), atherosclerosis (which creates turbulent flow through narrowed arteries), and hyperthyroidism (which speeds up the heart and boosts circulation). Less common causes include abnormal tangles of blood vessels near the ear, increased pressure of cerebrospinal fluid around the brain, and abnormalities in the sinus wall channels that drain blood from the brain.
Pulsatile tinnitus is worth getting checked out because it often points to an identifiable, treatable vascular condition. Unlike standard tinnitus, it can frequently be resolved by addressing the underlying cause.
Ménière’s Disease and Episodic Ringing
Some people experience tinnitus as part of a cluster of ear symptoms that come and go in attacks. Ménière’s disease causes episodes of intense vertigo lasting anywhere from 20 minutes to 12 hours, along with hearing loss (typically in lower frequencies), tinnitus, and a feeling of fullness or pressure in the affected ear. The ringing often ramps up just before or during a dizzy spell, then fades between episodes. A definite diagnosis requires at least two spontaneous vertigo episodes plus documented hearing loss on a hearing test. The episodic, fluctuating nature of the symptoms is what distinguishes Ménière’s from other causes of tinnitus.
How Tinnitus Is Evaluated
If your ringing persists, an audiologist will typically start with a standard hearing test to check for hearing loss across different frequencies. Because tinnitus often lives in the exact frequency range where hearing has dropped off, this test alone reveals a lot.
To characterize the tinnitus itself, audiologists use a process called pitch matching. You’ll listen to tones at different frequencies and compare them to the sound you hear internally, narrowing down until you find a close match. Some versions of this test let you control the frequency and volume yourself through a computer interface. The result helps guide treatment choices and gives clinicians a way to track changes over time. If pulsatile tinnitus is suspected, imaging of the blood vessels near the ear is usually the next step.
Managing Tinnitus Over the Long Term
There is no pill that reliably eliminates tinnitus, but several approaches can reduce how much it bothers you. The goal for most people shifts from “making it stop” to “making it fade into the background.”
Sound therapy is one of the most accessible tools. Using background noise, whether from a fan, a white noise machine, or a smartphone app, gives your brain competing input that makes the tinnitus less prominent. Many people find this especially helpful at bedtime, when quiet environments make ringing more noticeable.
Tinnitus Retraining Therapy (TRT) combines low-level sound generators worn in the ear with counseling designed to change how your brain responds to the tinnitus signal. The idea is to train your nervous system to classify the sound as neutral and unimportant, the same way you stop noticing the hum of an air conditioner. Multiple clinical centers have reported success rates around 80% or higher. Initial improvements typically appear about three months in and continue to build over time. Most practitioners recommend continuing for at least 12 months, with some suggesting 18 months to lock in the brain changes.
Cognitive behavioral therapy (CBT) takes a different angle, targeting the emotional distress and attention loops that can make tinnitus feel louder than it is. For people whose tinnitus drives anxiety or disrupts sleep, CBT can meaningfully improve quality of life even though the sound itself doesn’t change.
If hearing loss is part of the picture, hearing aids often help with tinnitus as well. By amplifying external sounds in the frequency range where hearing has dropped, they give the brain real input to process, which reduces the hyperactivity that generates the phantom ringing. Many modern hearing aids include built-in tinnitus masking features that combine amplification with gentle background sound.