14 Common Causes of Tinnitus
2. Wax Buildup
Wax buildup can cause tinnitus when it blocks sound from moving through your ear. Your ear makes wax to protect the ear canal and trap dirt. When too much wax collects, sound cannot pass through as it should.
This blockage can change how you hear normal sounds. Your brain may react by creating ringing, buzzing, or humming. You may notice the sound in one ear or both, depending on where the wax sits.
Wax buildup can also press on the ear canal or eardrum. This pressure can irritate the ear and affect how sound signals travel. When signals change, tinnitus can start or become louder. Some people feel fullness or pressure along with the noise. Others notice mild hearing loss or muffled sounds.
Wax problems affect people of all ages. Narrow ear canals, frequent earplug use, and certain skin conditions can raise the risk. Using objects to clean your ears can also push wax deeper and worsen the blockage.
3. Ear Infections
Ear infections can cause tinnitus when swelling or fluid changes how sound moves through your ear. You may notice ringing, buzzing, or a dull noise during or after an infection. These sounds often start when pain or pressure builds behind the eardrum. You can get tinnitus from infections in different parts of the ear. Middle ear infections often follow a cold or flu and can trap fluid. Outer ear infections affect the ear canal and can irritate the tissues that carry sound.
You may also feel fullness in your ear or notice muffled hearing. These changes can make tinnitus easier to hear, even in quiet rooms. Stress and poor sleep during illness can also increase your awareness of the sound. In most cases, tinnitus from an ear infection fades as the infection clears. Your hearing often returns to normal once swelling and fluid go away.
4. Blood Flow Changes
Blood flow changes near your ear can cause tinnitus. This type often sounds like a steady beat that matches your pulse. You may notice it more at night or in quiet rooms. Your inner ear sits close to many blood vessels. When blood moves faster or in a different way, you can hear that movement as sound. The noise does not come from outside your body.
Several situations can change blood flow and lead to this kind of tinnitus. Common examples include high blood pressure, which pushes blood through vessels with more force. Narrowed or stiff blood vessels can alter how blood moves through the area. Low red blood cell levels may cause blood to circulate faster to deliver enough oxygen. Blood flow–related tinnitus differs from other types. It links closely to your heartbeat, not to nerve damage or noise exposure. You may notice the sound change when you move your head or neck.
5. Meniere’s Disease
Meniere’s disease affects your inner ear and can trigger tinnitus. You may hear ringing, buzzing, or roaring sounds that come and go. These sounds often start during sudden attacks. You may also feel strong dizziness, called vertigo. Your balance can feel off, and you may feel sick to your stomach. These episodes can last minutes or hours.
Many people notice ear pressure or a full feeling in one ear. Your hearing can drop during attacks and improve later. Over time, hearing loss may become more lasting in the affected ear. Doctors do not know the exact cause. Many experts believe fluid builds up in the inner ear and disrupts normal signals. This change can affect both hearing and balance.
Meniere’s disease often affects one ear, not both. Attacks can happen rarely or several times a month. Stress, salt intake, and lack of sleep may worsen symptoms for some people. Tinnitus linked to this condition tends to change in loudness. It may worsen during vertigo attacks and ease after they pass.
6. Loss of Hearing
Loss of hearing often links closely with tinnitus. When your hearing drops, your brain may try to fill the quiet space with sound. This added noise can show up as ringing, buzzing, or hissing. You can lose hearing in different ways. Some loss happens slowly with age, while other loss starts after loud noise. Both types can change how your ears send sound signals to your brain.
There are four main types of hearing loss. Each type can change how you hear everyday sounds. Conductive loss affects how sound moves through the outer or middle ear. Sensorineural loss affects the inner ear or hearing nerve and often comes with tinnitus. Mixed loss combines both types. Auditory nerve problems affect how sound signals travel to the brain, even when the ear itself works.
Some health issues also link hearing loss and tinnitus. Inner ear disorders can cause hearing changes, balance problems, and ear noise. Ear infections, fluid buildup, and blocked ear canals can also affect hearing and trigger tinnitus.
7. Temporomandibular Joint Disorder (TMD)
Temporomandibular joint disorder, or TMD, affects the joint that connects your jaw to your skull. This joint sits just in front of your ears and helps you talk, chew, and yawn. When it does not move or rest the right way, it can affect nearby nerves linked to hearing.
You may notice tinnitus along with jaw pain, stiffness, or trouble opening your mouth. Some people hear ringing, buzzing, or hissing sounds that seem to come from one or both ears. Jaw clicking or popping can also occur, but sounds without pain are common and not always a problem.
TMD can start after a jaw injury, teeth grinding, or long periods of jaw tension. Stress can also play a role because it may cause you to clench your jaw without noticing. In many cases, the exact cause is not clear. Your symptoms may change when you move your jaw, chew food, or press near the joint.
8. Otosclerosis
Otosclerosis is a condition that affects the tiny bones inside your middle ear. These bones help carry sound from your ear to your brain. When one bone becomes stiff or stuck, sound cannot move as it should. Otosclerosis differs from tinnitus caused by loud noise or ear infections. The source comes from bone changes, not damage to nerves or fluid buildup.
You may notice tinnitus with otosclerosis. The sound often feels like ringing, buzzing, or humming. It can affect one ear or both, and it may change over time. This condition often develops slowly. You might first notice trouble hearing low sounds, followed by ongoing tinnitus.
Otosclerosis often appears in adults between ages 30 and 50. Family history can raise your risk. If close relatives had hearing loss or tinnitus, your chances may be higher. The tinnitus linked to otosclerosis usually relates to changes in hearing. As sound signals weaken, your brain may create noise to fill the gap.
9. Injuries of the Head or Neck
Head or neck injuries can trigger tinnitus by changing how your ears, nerves, or brain handle sound. You may notice ringing, buzzing, or hissing after an injury, even if your hearing seems normal. Turning your head, clenching your jaw, or pressing on your neck may alter the sound, often pointing to a physical cause rather than an ear disease.
A head injury can affect the parts of your brain that process sound. A concussion may cause swelling or stress in these areas. Neck injuries can also play a role. Whiplash from a car crash strains muscles and joints near the ears, disrupting blood flow or nerve signals linked to hearing.
Jaw problems often overlap with neck injuries. Damage near the jaw joint can change how nearby muscles move. These muscles sit close to the ear, which can affect sound signals and trigger tinnitus. Tinnitus from injury can start right away or appear weeks later. The sound may fade over time or continue if the injury caused lasting changes.
10. Eustachian Tube Dysfunction
A small air tube connects your middle ear to the back of your nose and helps balance pressure so your ears work normally. When it does not open or close as it should, sounds can change inside your ear. You may notice ringing, buzzing, or a sense of fullness, especially when pressure in your ear cannot even out. Swelling from a cold, allergies, or a sinus problem can narrow the opening of the tube. Changes in air pressure during flying or driving in the mountains can also trigger problems.
You may feel more than just ringing. Other signs can appear at the same time, including muffled hearing, a feeling of pressure or pain in the ear, popping or clicking sounds, and difficulty hearing clearly during pressure changes. Normally, the tube opens when you swallow, yawn, or chew. If swelling or fluid blocks it, pressure builds behind the eardrum and changes how your ear sends sound signals, which can lead to tinnitus.
11. Certain Types of Medications
Some medications can trigger tinnitus or make existing sounds more noticeable. You may notice ringing, buzzing, or hissing after starting a new drug or changing the dose. These effects often relate to how the medication affects your inner ear, nerves, or blood flow. Several drug classes link to tinnitus more often than others. The risk varies by dose, length of use, and how your body reacts. Tinnitus from medication can start slowly or appear within days. You may hear the sound in one ear or both.
You may face a higher risk if you take more than one drug that affects hearing. Existing hearing loss, kidney problems, or frequent noise exposure can also raise the chance of tinnitus. When new ear sounds appear, reviewing medications with a healthcare provider is often the next step. This allows for a discussion about whether a different option or dose adjustment may be needed.
12. A Ruptured Eardrum
A ruptured eardrum means a small tear or hole in the thin tissue inside your ear. This tissue helps carry sound, and when it breaks, sound does not travel the same way, which can lead to tinnitus. You may notice ringing, buzzing, or hissing in one ear, often with muffled hearing or a feeling of fullness.
Ear infections, loud noises close to your ear, sudden pressure changes during flying or diving, or objects placed in the ear can all cause a rupture. When the eardrum breaks, fluid or pus may drain from your ear and affect how your ear handles sound.
Most small ruptures heal on their own within weeks, and tinnitus often fades as the tissue heals. Larger tears can last longer and may affect hearing for a longer time. A ruptured eardrum can also raise the risk of middle ear infection, which can increase pressure and sound changes inside your ear, making tinnitus stronger or last longer.
13. Exposure to Loud Noises
Exposure to loud noises is a common cause of tinnitus. You may notice ringing, buzzing, or humming after hearing very loud sounds from work, hobbies, or daily activities. Loud noise can damage tiny parts inside your inner ear that help send sound signals to your brain, and when they get hurt, they may send mixed signals, which you hear as tinnitus. You can develop tinnitus after one very loud sound, such as fireworks, gunshots, or explosions near your ear. In some cases, the sound fades, but it can also last longer.
Repeated noise exposure also raises your risk. Music played at high volume, power tools, lawn equipment, and loud sports events can harm your hearing over time. The louder the sound, the less time it takes to cause damage. Noise-related tinnitus can affect one or both ears. The sound may come and go, or it may stay constant. Your risk increases when loud noise exposure becomes part of your regular life, even if the sounds seem normal but stay loud for long periods.
14. Smoking
Smoking increases your risk of tinnitus by disrupting blood flow to your inner ear. Nicotine and other chemicals in cigarettes irritate ear structures and affect your nervous system. Both direct and secondhand smoke can damage hearing and trigger ringing or buzzing sensations.
Nicotine also affects your nervous system. It can increase nerve activity and make you more aware of internal sounds. Smoking exposes you to many chemicals besides nicotine. These chemicals can irritate delicate ear structures over time. Long-term exposure may damage hearing and increase the chance of ongoing tinnitus.
Secondhand smoke can affect you in a similar way. Breathing smoke from others can reduce oxygen in your blood. Lower oxygen levels can stress the inner ear and trigger noise sensations. Smoking often links to other health issues that relate to tinnitus. These include high blood pressure and narrowed blood vessels. When these problems affect your head or neck, ear noise can become more noticeable.
