Ear Wax Buildup, Blocked Ears & Hearing Loss: What an ENT Actually Does
Most people don’t think about their ears until something feels wrong with them. And when that blocked, muffled sensation shows up sounds seeming distant, one ear feeling full, turning the volume up more than usual, the first instinct is usually to sort it out at home. Cotton buds, ear drops from the pharmacy, maybe tilting the head and hopping on one foot. The classic approach.
Sometimes that works. Often it doesn’t. And occasionally it makes things worse.
What a lot of people don’t realise is that ear wax buildup, while seemingly minor, can cause symptoms that genuinely affect daily life and that there’s a right way and a very wrong way to deal with it. Here’s what’s actually going on when ears feel blocked, when it becomes a hearing problem, and what an ENT does about it.
What Is Ear Wax and Why Does It Exist?
Ear wax the medical term is cerumen isn’t dirt. It’s a substance produced by glands in the outer ear canal, and it’s there for good reason. It traps dust, debris, and small insects before they can reach the eardrum. It has mild antibacterial properties. And it keeps the delicate skin of the ear canal moisturised and protected.
Under normal circumstances, ear wax doesn’t need any help clearing itself. The ear has a natural self-cleaning mechanism, the skin of the ear canal grows outward slowly, carrying old wax toward the opening where it dries, flakes, and falls away on its own. Most people never need to do anything about ear wax at all.
The problem develops when that natural process gets disrupted.
Why Does Wax Build Up?
Several things can interfere with the ear’s natural cleaning process:
The shape of the ear canal – some people simply have narrower or more curved canals than others, which makes it harder for wax to migrate outward naturally.
Overproduction – some people’s glands produce more wax than average. It accumulates faster than the self-cleaning process can handle.
Cotton bud use – this is one of the most common contributors and worth addressing directly. Cotton buds don’t clean the ear. They push wax deeper into the canal, compacting it against the eardrum rather than removing it. The ear canal narrows toward the eardrum, and pushing wax further in is what creates impaction.
Hearing aids and earplugs – regular use of devices inserted into the ear canal can disrupt the outward migration of wax and push it back inward.
Age – wax tends to become drier and less mobile with age, making natural clearance less effective.
Narrow or hairy ear canals – both can impede the natural movement of wax toward the outer ear.
What Does Blocked Ear Wax Actually Feel Like?
Impacted ear wax, wax that’s become compacted and is pressing against or near the eardrum, produces a fairly recognisable set of symptoms:
- A feeling of fullness or pressure in the ear, as though something is blocking it
- Muffled hearing – sounds seem distant or unclear, like listening through water or cotton wool
- Tinnitus – a ringing, buzzing, or humming sound in the affected ear
- Earache or mild discomfort in the ear canal
- A sensation of the ear being physically blocked when swallowing or yawning
- Itching inside the ear canal
- Occasionally, dizziness, particularly when the wax is pressing directly on the eardrum
These symptoms can come on gradually or appear suddenly, sometimes after swimming or showering when water causes the wax to swell.
When It Affects Hearing
This is where people start taking it more seriously. Hearing loss from ear wax impaction is actually one of the most common and most reversible causes of reduced hearing. It doesn’t mean the ear itself is damaged, it means the sound pathway is physically blocked.
The degree of hearing loss depends on how completely the canal is blocked. A partial blockage causes muffling. A complete blockage can reduce hearing significantly in the affected ear. People often don’t realise how much their hearing has been affected until after the wax is cleared, the difference can be striking.
The important distinction here is between conductive hearing loss, where sound isn’t reaching the inner ear properly due to a blockage and sensorineural hearing loss, where the hearing nerve or inner ear itself is affected. Wax causes the former, which is entirely reversible. The latter is a different situation that needs different investigation.
If hearing loss persists after wax is cleared, or if there was no significant wax to begin with, further investigation is needed to understand why.
The Home Remedy Problem
A few common approaches people try before seeing a doctor and why some of them cause problems:
Cotton buds – as already mentioned, these compact wax rather than remove it. They’re also capable of grazing the delicate skin of the ear canal or, in cases where the eardrum has a perforation, pushing material into the middle ear. The instruction on most cotton bud packaging now specifically states not to insert them into the ear canal.
Ear candles – a lit candle placed over the ear opening. There is no credible evidence that this removes ear wax, and there are documented cases of burns, wax from the candle entering the ear, and eardrum damage. This is one to avoid entirely.
Olive oil drops – actually reasonable as a softening measure for mild cases, not as a standalone treatment for significant impaction. Softening the wax can make professional removal easier and more comfortable.
Hydrogen peroxide drops – can help soften wax but shouldn’t be used if there’s any possibility of a perforated eardrum.
Syringing at home – using bulb syringes without knowing whether the eardrum is intact carries real risk. Water forced against a perforated eardrum causes significant problems.
The general principle: softening drops are low-risk and can help for mild cases. Physical attempts to remove wax at home, particularly with objects inserted into the canal, carry more risk than most people appreciate.
What an ENT Actually Does
This is usually what people are curious about, what happens when you actually go in to get it sorted professionally.
An ENT specialist starts with a proper examination. An otoscope, a small instrument with a light, is used to look directly into the ear canal and assess the wax. This tells the clinician how much wax is present, where it is, whether the eardrum is visible, and whether there are any other findings like infection, skin changes, or eardrum abnormalities.
The approach to removal depends on what’s found.
Microsuction – widely considered the safest and most effective method. A small suction device is used under direct vision, often with a microscope or a headlight, to gently extract the wax from the canal. It’s precise, quick, and doesn’t involve putting liquid in the ear, making it suitable even when a perforated eardrum is suspected. Most people find it more comfortable than they expected.
Ear irrigation – sometimes called ear syringing, though the modern version uses a controlled, electronic irrigator rather than a traditional metal syringe. Warm water is directed into the canal to flush wax out. It’s effective for softer wax and widely used, but it isn’t suitable when there’s a known or suspected perforation, a history of ear surgery, or an active infection.
Manual removal with instruments – for wax that’s too hard or positioned in a way that makes suction or irrigation less suitable, fine instruments like curettes or hooks are used under direct vision to carefully extract the wax. This requires skill and proper lighting but is very effective for stubborn impaction.
Pre-treatment softening – for very hard or impacted wax, the ENT may recommend a course of softening drops, olive oil or prescribed ear drops, for a few days before the removal appointment. This makes the process easier and more comfortable.
Beyond wax removal, an ENT visit for ear and hearing concerns may also involve:
Pure tone audiometry – a formal hearing test that maps hearing across different frequencies, identifying whether there’s any sensorineural component to the hearing loss that remains after wax is cleared.
Tympanometry – a test that assesses how well the eardrum moves, checking for fluid behind the eardrum or eardrum dysfunction.
Visual inspection for other causes – not all blocked ears are caused by wax. An ENT will also look for signs of infection, eardrum perforation, fluid in the middle ear, or other structural issues that might explain the symptoms.
Other Causes of Blocked Ears Worth Knowing
Wax is the most common culprit, but not the only one. If an ENT examines the ear and finds minimal or no significant wax, other possibilities include:
Eustachian tube dysfunction – the tube connecting the middle ear to the back of the throat helps regulate pressure. When it doesn’t open and close properly, it causes a feeling of fullness, muffled hearing, and sometimes a clicking or popping sensation. Often triggered by colds, sinus congestion, or altitude changes.
Otitis media with effusion (glue ear) – fluid accumulates in the middle ear without active infection. Common in children but can affect adults too. Causes significant hearing reduction.
Eardrum perforation – a hole in the eardrum from infection, injury, or sudden pressure change. Causes hearing loss and sometimes discharge.
Outer ear infection (otitis externa) – infection of the ear canal causes swelling that can partially block it, causing pain, discharge, and reduced hearing.
Noise-induced hearing loss – prolonged or sudden exposure to loud noise can damage the hair cells in the inner ear, causing permanent sensorineural hearing loss and tinnitus.
Each of these has its own investigation and management pathway – which is exactly why a proper ENT assessment is more useful than home remedies when symptoms don’t resolve.
When Should You See an ENT?
For most mild cases of ear fullness that clear up on their own or with a few days of olive oil drops, a GP or general visit is usually enough.
But see an ENT if:
- Hearing loss has been present for more than a few weeks
- Symptoms persist after attempting wax softening or GP-level irrigation
- There’s pain, discharge, or bleeding from the ear alongside the blockage
- Tinnitus has developed alongside the blocked feeling
- Dizziness is accompanying the ear symptoms
- There’s a history of ear surgery, previous perforation, or recurring ear infections
- Hearing loss seems to be getting progressively worse over time
Final Thoughts
Ear wax buildup sounds trivial. And for most people, it clears on its own and never causes a problem. But for those who develop significant impaction, the effect on hearing and daily comfort can be surprisingly significant.
The good news is that it’s one of the most straightforwardly treatable conditions an ENT sees. The right removal technique, in the right hands, resolves it quickly, often in a single appointment.
What’s less straightforward is when hearing loss persists after wax is cleared, or when the ear feels blocked but there’s nothing significant to remove. Those situations need a more thorough assessment to understand what’s actually going on.
Our ENT specialist evaluates ear and hearing concerns thoroughly from simple wax removal to investigating the underlying cause when symptoms point to something beyond a straightforward blockage. If your ears have been feeling blocked or your hearing has been off for a while, come in and get it properly sorted rather than continuing to manage around it.