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TLDR: Hearing loss causes in Cambodia isn’t just about getting older. Loud traffic, untreated ear infections, diabetes, certain medications, and Cambodia’s humid climate all play a role. Most people wait years before getting checked — which makes everything harder to treat. Advance Hearing center offers proper hearing tests in Cambodia so you actually know what’s going on before it gets worse.
Spend a week in Phnom Penh and your ears are working overtime. Tuk-tuks, construction sites, karaoke bars at midnight, motorbikes weaving through traffic with no apparent speed limit. It’s loud. And that’s just the city.
But here’s something most people don’t realise — a lot of the hearing loss showing up in Cambodia has nothing to do with noise. Some of it comes from ear infections that got ignored. Some from medications. Some from blood sugar levels that have been high for years. Some from being born with it and never getting screened.
The cause matters because it changes what you can actually do about it.
Age — Yes, It’s a Factor. But Maybe Not the Way You Think
The classic image of hearing loss is someone elderly asking you to repeat yourself. And while age-related hearing loss (presbycusis) is genuinely common — affecting roughly 1 in 3 people over 65 — it’s rarely a sudden thing.
What happens is that the tiny hair cells inside the cochlea gradually wear down over decades. These cells turn sound into electrical signals for the brain. They don’t grow back. So as they slowly die off, certain frequencies start to fade — usually the higher ones first. That’s why older adults often struggle with women’s voices or can’t make out consonants like “s” or “f” even when the volume seems fine to them.
The frustrating part is that it creeps in so slowly that most people don’t catch it until it’s already moderate. By then, they’ve been compensating for years — turning the TV up, avoiding restaurants, nodding along in conversations they only half heard.
Noise Damage — Cambodia’s Underreported Problem
This one doesn’t get nearly enough attention here. Noise-induced hearing loss is permanent, completely preventable, and absolutely happening in Cambodia every single day.
The hair cells in your inner ear can only handle so much. Too much sound for too long, and they start breaking down. Unlike a muscle that gets stronger when you push it, your cochlea doesn’t adapt to loud environments. It just slowly degrades.
In Cambodia, the risk factors are everywhere:
- Daily traffic exposure — sitting on a motorbike in Phnom Penh traffic for years adds up more than most people realise
- Construction and factory work — heavy machinery without ear protection is one of the fastest routes to permanent hearing damage
- Nightlife and entertainment — regular exposure to loud music, whether working in a venue or attending as a customer
- Earphones at high volume — younger people in Cambodia are dealing with this more than any previous generation
The tricky thing is that noise damage doesn’t hurt. There’s no warning. You lose a bit of high-frequency hearing, compensate without noticing, lose a bit more, and eventually conversations start sounding muffled.
Ear Infections — When “It’ll Clear Up” Becomes a Bigger Problem
Cambodia’s climate is hot and humid year-round. That combination is genuinely bad for ears.
Warm, moist conditions make it easier for bacteria and fungi to grow inside the ear canal. Otitis media (middle ear infection) is extremely common here, especially in children. Most of the time a single infection, properly treated, doesn’t cause lasting damage. The problem is when it keeps coming back, or when treatment gets delayed.
Repeated middle ear infections can cause fluid to build up behind the eardrum, scarring of the eardrum itself, or damage to the small bones in the middle ear. Any of these can cause conductive hearing loss — the kind where sound physically can’t get through properly.
In children especially, undetected hearing problems from recurrent infections can affect speech development, learning, and social confidence. This is exactly why early baby hearing screening matters so much. Catching it at 6 months looks very different from catching it at age 3.
Earwax — Simple, Common, Annoying
Probably not the most glamorous entry on this list, but earwax buildup is genuinely one of the most common reasons people suddenly feel like their hearing has gotten worse.
In Cambodia’s climate, ears can produce more wax than usual, and the heat makes it stickier. Most of the time your ears self-clean fine. But sometimes wax hardens and packs tight against the eardrum, blocking sound from getting through.
The mistake people make is using cotton swabs to fix it. That almost always makes it worse by pushing wax deeper. Professional ear cleaning clears it properly and, in most cases, hearing returns to normal straight away. No hearing aid needed, no medication — just a simple in-clinic procedure.
Diabetes and Blood Pressure — The Ear Connection Nobody Talks About
If you have diabetes or high blood pressure and your hearing has been getting worse, there’s a real chance they’re connected.
Your inner ear depends on a rich supply of tiny blood vessels to stay healthy. Both diabetes and high blood pressure are hard on small blood vessels throughout the body — and the cochlea is no exception. When blood flow to the inner ear is compromised over time, the hair cells don’t get what they need and they start to fail.
Research consistently shows that people with poorly controlled diabetes have significantly higher rates of sensorineural hearing loss. It’s not a coincidence. If you’re managing either of these conditions and you’re over 45, getting your hearing checked should be part of your regular health routine.
Medications That Can Quietly Damage Your Hearing
Some drugs are ototoxic — meaning they can damage the inner ear as a side effect. The list is longer than most people know.
Common ones include:
- Aminoglycoside antibiotics like gentamicin and streptomycin, used for serious bacterial infections
- Certain chemotherapy drugs — cisplatin is one of the worst offenders
- Loop diuretics used in heart failure treatment
- High doses of aspirin taken over a long period
- Some antimalarial medications
The damage is sometimes temporary and reverses when the medication stops. But with some drugs — particularly aminoglycosides — the hearing loss can be permanent. If you’ve been on long-term medication and you’ve noticed your hearing changing, it’s worth getting an audiometry test to establish a clear baseline. That way you and your doctor actually know what’s happening.
Congenital Hearing Loss — Born With It
Some children are born with hearing loss or develop it very early. It can come from genetic factors, complications during pregnancy, premature birth, or oxygen problems at birth.
This isn’t rare. Congenital hearing loss is one of the most common birth conditions worldwide. And in Cambodia, the bigger issue is that screening isn’t always routine — which means some children go unidentified for longer than they should.
A child with undetected hearing loss doesn’t learn to speak at the normal pace. They get labelled as slow or inattentive when they’re actually just not hearing the way they should. The earlier it’s caught, the more that can be done.
An ABR test (Auditory Brainstem Response) is the standard test for newborns and young infants — it doesn’t need the child to respond or cooperate, making it the right tool for early screening.
Hearing Loss Causes in Cambodia Types and What Causes Each
Type | What’s Happening | Typical Causes |
Sensorineural | Inner ear or auditory nerve damage | Ageing, noise, genetics, diabetes, medications |
Conductive | Sound blocked before it reaches the inner ear | Ear infections, earwax, fluid, eardrum damage |
Mixed | Both happening at once | Combination of the above |
Sudden | Rapid loss over 72 hours or less | Inner ear disorder, trauma, viral infection |
Knowing which type you have isn’t just academic — it determines whether treatment involves a simple procedure, a hearing aid, or something more involved like a cochlear implant.
What Makes Cambodia Specifically Different
A few things stand out compared to higher-income countries where Hearing Loss Causes in Cambodia research mostly comes from.
Delayed diagnosis is a real issue. The global average from first noticing hearing problems to seeking help is about 7 years. In Cambodia, that gap is often longer because there’s less awareness, less routine screening, and a tendency to write early hearing changes off as tiredness or distraction.
The climate genuinely increases ear infection risk year-round. This isn’t just about children — adults who swim regularly, work outdoors in humid conditions, or have had recurring ear issues need to pay attention to this too.
And occupational noise exposure in Cambodia’s growing construction and manufacturing sectors isn’t well regulated from an ear protection standpoint. A lot of workers don’t have access to quality hearing protection, and many aren’t aware that what they’re exposed to daily is permanently damaging.
When to Actually Get Checked
Don’t wait until conversations become a real struggle. Go sooner if:
- You work in a noisy environment and haven’t had your hearing tested
- You have diabetes or high blood pressure
- You’re over 50 and haven’t had a hearing evaluation in the last few years
- Your child had frequent ear infections in their first few years
- You’ve been on long-term medication with known ototoxic risk
- You’ve noticed ringing in your ears (tinnitus)
- People keep telling you the TV is too loud
Advance Hearing center covers the full evaluation process — pure-tone audiometry, speech testing, tympanometry, and specialist assessments for children. You get clear answers, not guesswork. Visit Hearing Aids Cambodia to book.
