Ringing in your ear is almost always a symptom of something else going on in your body, not a disease on its own. The most common cause is damage to the tiny hair cells in your inner ear, often from noise exposure or age-related hearing loss. But the list of possible triggers is long, ranging from something as simple as earwax buildup to medications, head injuries, and blood vessel problems.
How Your Ear Creates a Phantom Sound
Your inner ear is lined with thousands of microscopic hair cells. When sound waves enter your ear, these cells convert the vibrations into electrical signals that travel through nerves to your brain, where they’re processed as sound. When those hair cells are damaged or destroyed, they can’t be repaired or regrown. The damaged cells start firing off random electrical signals, and your brain interprets that erratic activity as sound, even though no external sound exists.
In some cases, the problem goes beyond the ear itself. Your brain’s hearing centers can develop their own abnormal activity patterns in response to reduced input from damaged ears. Think of it like a radio tuned to a dead channel: when the signal drops out, the brain turns up its own internal volume to compensate, producing a persistent hum, ring, or buzz. This is why tinnitus can continue even after the original trigger is resolved.
Noise Exposure
Loud sound is one of the most preventable causes of tinnitus. The CDC considers noise above 85 decibels hazardous, roughly the volume of heavy city traffic or a loud restaurant. At that level, eight hours of continuous exposure can cause measurable hearing damage. For every 3-decibel increase above that threshold, the safe exposure time drops by half. A rock concert at 100 decibels, for instance, becomes risky in under 15 minutes.
A single extremely loud event, like a gunshot or explosion, can cause immediate and permanent damage to those inner ear hair cells. More commonly, though, the damage accumulates gradually over years of exposure to moderately loud environments: construction sites, factory floors, headphones at high volume, or regular concert attendance. The ringing may start as temporary episodes after loud events, then eventually become constant.
Age-Related Hearing Loss
Hearing naturally declines as you get older, and tinnitus often follows. The same hair cells that degrade from noise exposure also wear down with age. As your ability to detect certain frequencies fades, your brain may fill in the gaps with its own generated sound. This is the most common reason tinnitus appears gradually in middle age or later without any obvious triggering event.
Earwax Buildup
Sometimes the cause is purely mechanical. When earwax accumulates and becomes impacted, it can press against the eardrum or block the ear canal enough to cause ringing, along with muffled hearing, ear pain, and dizziness. This is one of the most easily treatable causes. Once the blockage is removed, the ringing typically stops. Trying to dig out earwax yourself with cotton swabs often pushes it deeper and makes the problem worse.
Medications That Affect Hearing
More than 200 medications are known to be potentially harmful to hearing, and tinnitus is one of the earliest warning signs. Some of the most common culprits include:
- High-dose aspirin and related pain relievers. At standard doses, aspirin rarely causes problems. At the high doses sometimes used for chronic inflammatory conditions, ringing is a well-documented side effect that usually reverses when the dose is lowered.
- Certain antibiotics, particularly macrolide types like azithromycin and clarithromycin, especially when prescribed at high doses for extended periods.
- Loop diuretics used for heart failure and kidney disease.
- Chemotherapy drugs, particularly platinum-based agents used in cancer treatment.
- Some biologic therapies, including certain immunotherapy and disease-modifying drugs.
If you notice ringing that starts or worsens after beginning a new medication, that connection is worth raising with whoever prescribed it. In many cases, the tinnitus fades after the medication is stopped or the dose is adjusted.
Head and Neck Injuries
A blow to the head can directly damage the hair cells in your inner ear, even if the impact doesn’t seem severe. Concussions are a particularly underrecognized cause. The tiny nerve cells that detect sound and relay signals to the brain are delicate enough that the shaking force of a concussion can disrupt or destroy them. Beyond the ringing itself, this damage can also cause noise sensitivity and difficulty processing speech clearly.
Neck injuries, including whiplash, can also trigger tinnitus by affecting the nerves and blood vessels that run between the cervical spine and the ear. This type of tinnitus sometimes responds to physical therapy targeting the neck and jaw.
Pulsatile Tinnitus: Ringing That Beats With Your Heart
If the sound you hear is rhythmic and syncs up with your pulse, that’s a distinct type called pulsatile tinnitus. Unlike the more common form, this one usually has a specific, identifiable vascular cause. You’re hearing the actual sound of blood flowing through vessels near your ear. Possible triggers include:
- High blood pressure, which increases the force of blood against vessel walls near the ear
- Anemia, which can increase blood flow volume and make it more audible
- Atherosclerosis, where narrowed or hardened arteries create turbulent, noisier blood flow
- Hyperthyroidism, which speeds up your heart rate and boosts blood flow
- Abnormal tangles of blood vessels near the ear (arteriovenous malformations)
- Increased pressure of cerebrospinal fluid around the brain, which presses on nearby blood vessels
Pulsatile tinnitus is more likely than standard tinnitus to have a treatable underlying cause, which is why it warrants prompt medical evaluation.
Stress, Diet, and Lifestyle Factors
Stress doesn’t directly cause tinnitus, but it reliably makes existing tinnitus louder and harder to ignore. Any activity that lowers stress, whether that’s exercise, meditation, or biofeedback (a technique that teaches you to consciously control tension and heart rate), can reduce the perceived intensity of the ringing.
Diet plays a more nuanced role than many people expect. Despite widespread claims, there’s very little scientific evidence that caffeine worsens tinnitus. The American Tinnitus Association recommends tracking your own response rather than automatically cutting it out. The same applies to alcohol. The one strong dietary connection involves salt: for people with Ménière’s disease (a disorder of the inner ear that causes tinnitus, vertigo, and hearing loss), reducing sodium intake has a well-established benefit. A generally healthy diet supports better blood flow and lower blood pressure, both of which matter for ear health.
When Ringing Signals Something Serious
Most tinnitus is benign, if annoying. But certain patterns are red flags. Ringing that occurs in only one ear, especially if it’s accompanied by hearing loss on that same side, can indicate a benign tumor on the hearing nerve called a vestibular schwannoma. This is a slow-growing growth that’s treatable, but it needs to be identified.
Other warning signs include tinnitus accompanied by neurological symptoms like dizziness, facial numbness, or difficulty with balance. Pulsatile tinnitus that a doctor can actually hear through a stethoscope (called objective tinnitus) also requires investigation, as it points to a structural or vascular problem. Sudden onset of loud ringing, particularly after a head injury or with rapid hearing loss, should be evaluated quickly since some causes of sudden hearing loss respond best to early treatment.