Conductive hearing loss happens when sound cannot travel properly through your outer or middle ear to reach the inner ear

In conductive hearing loss, your inner ear works fine, but something is blocking or reducing the sound before it gets there. The problem sits in your outer ear (the part you can see) or your middle ear (the small bones and air space behind your eardrum). Sound waves enter normally, but they get stuck or weakened along the way, so less sound reaches the part of your ear that sends signals to your brain.

This is different from sensorineural hearing loss, where the inner ear or the nerve itself is damaged. Conductive loss is often temporary or treatable, which is why identifying what is causing it matters.

Key Takeaways

  • Conductive hearing loss blocks sound in the outer or middle ear, not in the inner ear itself.
  • Common causes include earwax buildup, ear infections, fluid behind the eardrum, and problems with the tiny bones in the middle ear.
  • Many cases are temporary and improve on their own or with treatment like antibiotics or earwax removal.
  • A hearing test can show whether your hearing loss is conductive, sensorineural, or both.
  • Surgery can sometimes restore hearing if the problem is a damaged bone or a hole in the eardrum.

Common causes of conductive hearing loss

Earwax buildup is the most common cause. Earwax protects your ear canal, but sometimes it hardens and blocks sound from reaching your eardrum. A doctor can remove it in minutes.

Ear infections cause fluid to build up behind your eardrum, especially in children. The fluid muffles sound and usually clears on its own within a few weeks, though some infections need antibiotics or drainage.

A hole in the eardrum (perforation) lets sound escape instead of vibrating the middle ear bones. Small holes often heal without treatment; larger ones may need surgery.

Problems with the middle ear bones (the hammer, anvil, and stirrup) can develop from infection, injury, or a condition called otosclerosis, where bone grows abnormally and locks one of the bones in place. This type usually requires surgery to restore movement.

Swimmer's ear (external otitis) is an infection of the ear canal that swells the canal and blocks sound. It responds well to antibiotic drops.

How conductive hearing loss differs from other types

In sensorineural hearing loss, the inner ear or the nerve carrying sound to your brain is damaged. This type is usually permanent and cannot be reversed by removing a blockage or treating an infection. It often comes from aging, noise exposure, or illness.

Some people have mixed hearing loss — both conductive and sensorineural problems at the same time. For example, someone might have earwax blocking sound and also have age-related inner ear damage. Treating the conductive part can improve overall hearing, even if the sensorineural part remains.

The key difference: conductive loss is about sound not reaching the inner ear; sensorineural loss is about the inner ear or nerve not working properly. A hearing test shows which type you have by measuring how well you hear through bone versus air.

When conductive hearing loss is temporary

Many cases resolve without lasting treatment. Fluid from a cold or ear infection usually drains within two to three weeks. Earwax can be removed in one visit. A small eardrum perforation often heals on its own within weeks.

During this time, you may notice muffled hearing, difficulty hearing in noisy places, or a feeling of fullness in your ear. These symptoms fade as the underlying cause clears.

If symptoms last longer than three months, or if you have repeated infections, your doctor may recommend further testing or treatment to rule out something that needs intervention.

When conductive hearing loss requires treatment

Some causes do not resolve on their own. Otosclerosis — where bone hardens around the middle ear bones — usually requires surgery called a stapedectomy to restore movement and hearing.

A large or persistent hole in the eardrum may need surgery (tympanoplasty) to patch it. Chronic ear infections that do not clear with antibiotics sometimes need tubes inserted in the eardrum to drain fluid and allow the middle ear to function.

Hearing aids can help while you wait for surgery or if surgery is not an option. Because conductive loss is a mechanical problem, hearing aids work well — they simply amplify sound enough to overcome the blockage.

What happens during a hearing test for conductive loss

An audiologist or ear doctor uses several tests to identify conductive hearing loss. An otoscope lets them look inside your ear canal and at your eardrum to spot earwax, infection, or perforation.

An audiogram measures how well you hear sounds at different volumes and pitches. The results show a pattern: you hear better through bone conduction (vibrations placed on your skull) than through air conduction (sound through your ear canal). This pattern signals conductive loss.

Tympanometry tests how well your eardrum moves. A stiff eardrum (from fluid or infection) or a hole shows up clearly. This test takes seconds and does not hurt.

Together, these tests tell your doctor exactly where the problem is and what is causing it, which guides the next step — whether that is watchful waiting, medication, removal of earwax, or referral to an ear surgeon.

Frequently Asked Questions

Can conductive hearing loss go away on its own?

Yes, many cases do. Fluid from infections usually drains within weeks, earwax can be removed, and small eardrum perforations often heal without treatment. If symptoms persist beyond three months, contact your doctor to rule out something that needs intervention.

Is conductive hearing loss permanent?

Not usually. Most causes are temporary or treatable. Conditions like otosclerosis or large eardrum holes may need surgery, but surgery often restores hearing fully. Even when surgery is not possible, hearing aids work well for conductive loss.

Can I get conductive hearing loss in one ear only?

Yes. Earwax, infection, or a perforated eardrum can affect one ear while the other remains normal. A hearing test will show which ear is affected and help your doctor find the cause.

What should I do if I think I have conductive hearing loss?

See your primary care doctor or an ear, nose, and throat specialist (ENT). They can look in your ear, run simple tests, and identify the cause. Many causes are easy to treat once diagnosed.

Do hearing aids work for conductive hearing loss?

Yes, hearing aids work well because they amplify sound enough to overcome the blockage. They are a good option while waiting for surgery or if surgery is not suitable for your situation.