The noises you’re hearing in your ear are almost certainly tinnitus, a phantom sound generated by your brain rather than by anything in the world around you. About 14.4% of adults worldwide experience it. The sound might be ringing, buzzing, hissing, clicking, or even a rhythmic thumping, and the type of noise you hear can point toward different causes.
How Your Brain Creates Phantom Sound
Most ear noises aren’t actually coming from your ear. They originate in your brain. When the tiny hair cells in your inner ear become damaged, whether from loud noise, aging, or other causes, they send fewer signals along the auditory nerve to the brain. Your brain responds to that reduced input by turning up its own internal volume. Neurons in the hearing centers begin firing spontaneously and in synchronized patterns, essentially generating sound where none exists.
This is why tinnitus often accompanies hearing loss. Your brain is compensating for missing information, and the phantom sound it produces fills the gap. In animals studied in labs, researchers found that synchronized firing between groups of neurons correlates strongly with tinnitus severity. The more coordinated the misfiring, the louder and more persistent the perceived sound.
Common Causes of Steady Ringing or Buzzing
Noise exposure is the single most common trigger. Concerts, power tools, earbuds at high volume, or years of occupational noise can all damage inner ear hair cells permanently. Age-related hearing loss works the same way, just more gradually. Even mild hearing loss you haven’t noticed on its own can produce noticeable tinnitus.
Earwax buildup is one of the simplest and most fixable causes. When wax presses against your eardrum, it can create a low hum or ringing that disappears once the blockage is cleared. Ear infections, sinus congestion, and allergies can also produce temporary ear noises by changing pressure in the middle ear.
Ménière’s disease causes episodes of low-frequency tinnitus alongside vertigo lasting 20 minutes to 12 hours and fluctuating hearing loss, usually in one ear. The tinnitus often comes with a feeling of fullness, as if your ear is stuffed with cotton. Between episodes, symptoms may disappear entirely.
Jaw problems are another overlooked source. The temporomandibular joint (TMJ) sits right next to the ear canal, and the jaw and middle ear share muscles, ligaments, and nerve pathways. Dysfunction or inflammation in the jaw can alter how sound is perceived, producing tinnitus that worsens when you chew, clench, or open your mouth wide.
Medications That Can Trigger Ear Noises
Certain drugs are known to damage hearing or trigger tinnitus. High-dose aspirin is one of the most common culprits. Other medications linked to ear noises include macrolide antibiotics (like azithromycin) when used long-term at high doses, loop diuretics used for heart failure and kidney disease, and some chemotherapy drugs. Combining two of these medications raises the risk significantly. Cisplatin paired with a loop diuretic, for example, can cause far more hearing damage than either drug alone. If tinnitus starts shortly after beginning a new medication, that timing is worth flagging to whoever prescribed it.
Clicking, Crackling, or Thumping Sounds
If you hear rhythmic clicking, crackling, or fluttering rather than a steady tone, the cause may be muscular. Middle ear myoclonus is an involuntary spasm of one of two tiny muscles inside your ear: the tensor tympani or the stapedius. These spasms produce sounds people describe as buzzing, thumping, rumbling, or crackling. They can come and go without warning, affect one or both ears, and sometimes last only seconds at a time.
This type of noise is mechanical rather than neural. It’s your ear physically vibrating, not your brain generating a phantom sound. The distinction matters because mechanical causes are sometimes treatable in ways that standard tinnitus is not.
Pulsatile Tinnitus: Hearing Your Heartbeat
If the noise pulses in rhythm with your heartbeat, you’re experiencing pulsatile tinnitus, which has a different set of causes from regular tinnitus. This type involves actual sound created by blood flow near your ears, not a phantom signal from your brain. A doctor can sometimes hear it too using a stethoscope.
Conditions that increase or disrupt blood flow near the ear can trigger it. These include high blood pressure, anemia (which increases overall blood flow), atherosclerosis (which creates turbulent flow through narrowed arteries), hyperthyroidism, and a condition called idiopathic intracranial hypertension where cerebrospinal fluid builds up around the brain and presses on blood vessels. Tangles of blood vessels near the ear, known as arteriovenous malformations, are a less common but more serious cause.
Pulsatile tinnitus is worth getting checked promptly. Most cases turn out to be benign, but the list of possible causes includes conditions that benefit from early treatment.
When Ear Noises Need Urgent Attention
Most tinnitus is not dangerous, but certain patterns are red flags. Tinnitus in only one ear is significant because it can be a presenting sign of an acoustic neuroma (a benign tumor on the hearing nerve) or Ménière’s disease. Bilateral tinnitus is far more common, so one-sided noise deserves investigation.
Sudden hearing loss with new tinnitus in one ear is treated as a medical emergency. Outcomes are better the faster treatment begins, ideally the same day. Other urgent combinations include tinnitus with facial weakness or paralysis, severe vertigo, or sudden-onset pulsatile tinnitus, all of which can indicate serious conditions affecting blood vessels or structures inside the skull.
How Tinnitus Is Managed
When an underlying cause exists, like earwax, an infection, a medication, or a vascular condition, treating that cause can reduce or eliminate the noise. For the majority of tinnitus driven by hearing loss and neural changes, the goal shifts to reducing how much the sound bothers you rather than silencing it entirely.
Tinnitus Retraining Therapy (TRT) is one of the most established approaches. It combines structured counseling about how tinnitus works with low-level sound therapy. You wear a small device that generates soft noise set just below the level of your tinnitus, so the two sounds blend together. Over time, your brain learns to reclassify the tinnitus as background noise and stops paying attention to it. This process, called habituation, doesn’t make the sound disappear but can dramatically reduce its impact on daily life.
Sound masking takes a simpler approach: using white noise machines, fans, or ambient soundscapes to cover the tinnitus, especially at night when quiet environments make it more noticeable. Many people find that even a low-level background sound is enough to push tinnitus out of conscious awareness.
Hearing aids help more people than you might expect. Because tinnitus often stems from the brain compensating for reduced input, restoring that input with amplification can quiet the phantom noise. If you have any degree of hearing loss alongside tinnitus, a hearing evaluation is one of the most productive first steps. About 17% of adults with frequent tinnitus also experience depression, so addressing the emotional toll matters as much as managing the sound itself.