Why Your Ear Feels Clogged After Swimming—and No Water Comes Out

A blocked ear after swimming usually is not trapped water. The water drains in 15 to 30 minutes, yet the canal can stay sealed because the skin lining it swells or existing earwax soaks up moisture and expands. Tug your earlobe: if the clogged feeling does not move, the cause is swelling or wax, not water.

Water that does sit in the canal is rarely the problem by the time you notice it. The canal runs about 2.5 cm from opening to eardrum and is built to clear itself, so pool and ocean water typically runs out or evaporates within 15 to 30 minutes. What lingers is the aftermath: wet skin that puffs up, narrowing the passage enough that you feel pressure even though nothing is blocking it.

Wax is the more common culprit, and the number surprises people. Cerumen can absorb water and expand by as much as 50% of its volume. A canal that was 80% open at noon can be effectively closed by dinner, which is why the blocked feeling often arrives hours after you leave the water rather than immediately.

Pain is the line you should not cross on your own.

• Check with your earlobe: Tugging the earlobe or pressing on the tragus changes the sensation when the cause sits in the canal wall, which points to swelling or wax rather than water or a middle-ear problem.
• Wax expands 50%: Cerumen can absorb moisture and swell by up to half its volume, sealing the canal shut long after the swim itself.
• Drainage takes 30 minutes: The roughly 2.5 cm ear canal is self-cleaning, and water left in it normally clears within 15 to 30 minutes.
• Skip the cotton swabs: Digging with swabs or fingers pushes wax deeper toward the eardrum and can raise infection risk by up to three times.
• Swimmer's ear affects 1 in 100: Otitis externa hits roughly 1 in 100 people in the US each year, at higher rates among regular swimmers, and burning pain is its signature.

Why does my ear feel clogged after swimming if no water comes out?

Most of the time, the water is gone. For the average adult, the ear canal is only about 2.5 cm long and curves slightly, so what goes in usually runs back out within 15 to 30 minutes of leaving the pool or the sea. What lingers is the aftermath: the skin lining that canal has been sitting in fresh water or salt water, and that lining is thin, maybe four to six cells deep in places, sitting directly on bone with almost no padding underneath. It takes on water, swells, and narrows the passage. You feel a plug. There is nothing left to tip out.

Cerumen behaves the same way. Earwax is not inert; it is a mix of shed skin cells, oils and a waxy matrix that absorbs water and can expand by up to 50% in volume when it gets wet. A small amount of wax that sat quietly against the canal wall for months can swell into a cork within an hour of a swim, sealing the canal shut. This is why the blockage sometimes appears hours later, not immediately. Wax impaction affects roughly 1 in 10 children and 1 in 20 adults, so a fair number of swimmers are one soak away from this problem without knowing it.

The fullness itself is a pressure signal, not a sloshing one. Both swollen skin and expanded wax push inward on the canal walls and press against the eardrum, and the eardrum is a membrane about 0.1 mm thick that reports any change in pressure as occlusion. That is also why hearing drops: a narrowed canal changes the resonance of the outer ear, muffling sound in the low frequencies first. If you press gently on the tragus, the small flap of cartilage in front of the canal, and the blocked feeling sharpens, you are almost certainly dealing with swelling or wax rather than a pocket of water.

What this means for what you do next

Do not go digging. Cotton swabs triple the risk of infection by abrading the swollen skin and pushing wax deeper, and the American Academy of Otolaryngology–Head and Neck Surgery advises against putting anything smaller than your elbow in the canal. If the sensation is wax expansion, a 1:1 mix of rubbing alcohol and white vinegar, 50% each, dropped in and allowed to drain can help by drying the tissue and shifting the pH away from the bacteria that cause otitis externa, though it will make inflamed skin sting. If the canal is already swollen shut from swimmer's ear, alcohol is the wrong move and you need a doctor. Give it more than three days of persistent fullness, or any pain, discharge or hearing loss, and stop guessing. Swimmer's ear runs at about 1 in 100 people per year in the US, and an otoscope exam takes a clinician under a minute to settle the question.

How can I tell if it's water, wax, or swollen skin?

Your ear canal is about 2.5 cm long in an adult, and the outer third is skin draped over cartilage while the inner two-thirds is skin stuck directly to bone. That anatomy matters because only the outer cartilaginous section can swell. Press the tragus, the small flap in front of the opening, or tug the earlobe downward. If the pressure changes the sensation at all, the canal wall is involved, and water sitting in a healthy canal does not behave that way.

Run the three tests together rather than one at a time. Tilt your head toward your shoulder for five seconds, then tug, then note whether your hearing sounds like you're under a blanket with the volume turned down. Most people get a clean answer in under a minute.

If your head tilt produces nothing and the fullness is total, you are almost certainly in the wax or swelling columns, not the water one. Expanded wax is the more common of the two: impaction affects roughly 1 in 20 adults and 1 in 10 children, and a canal that was 80% blocked before you swam can seal shut once the cerumen swells. Swollen skin is the one that flips the answer. Itching that started a day before the fullness, plus pain when you press the tragus, points toward otitis externa rather than wax, and swimmer's ear hits about 1 in 100 people per year in the US. That distinction changes everything about what to do next, because drops that are fine for wax will sting badly on inflamed skin.

Most articles tell you to hop on one leg or drip in a 1:1 mix of rubbing alcohol and white vinegar. That advice is correct for water and wrong for the other two. Alcohol and vinegar work by evaporating residual moisture and restoring the canal's acidic pH, but if the water is already gone and your canal is swollen, the alcohol burns and the vinegar adds irritation to tissue that is already inflamed. Cleveland Clinic and the American Academy of Otolaryngology–Head and Neck Surgery both draw the line at three days: symptoms lasting longer than 72 hours need an otoscope exam, not another round of home remedies. And skip the cotton swab entirely. Swab use raises infection risk roughly threefold, and it packs wax deeper against the eardrum, which is exactly how a partial blockage becomes a complete one.

What should I do right now to unblock my ear?

Everything below assumes two things: your eardrum is intact, and you have no pain, no fever, and no fluid leaking out of the canal. If any of those three are present, stop reading and book a same-day appointment. The steps work on the three usual suspects from the previous section — a stubborn water pocket, cerumen that swelled after absorbing pool water, or skin that puffed up and closed the canal. You need about ten minutes, a hairdryer, and optionally a bottle of 50/50 rubbing alcohol and white vinegar. Total cost if you buy the drops: under $5 at any pharmacy.

1. Do the palm-vacuum first. Tilt your head so the blocked ear points at the floor, press your palm flat against it to seal, then push in and release quickly. The seal-and-release creates a pressure swing that pulls fluid out of the canal. Do it five or six times. If water is going to come out, this is when it happens.
2. Give gravity 15 to 30 minutes. Lie on your side with the affected ear down, or tilt and hold. Most trapped water drains in that window on its own. Don't poke at it while you wait.
3. Use the hairdryer on the lowest heat and lowest fan setting, held at arm's length. This is the step people botch. Hold it 30 cm (about a foot) from the ear and aim the airflow at the opening, not into it, for 30 to 60 seconds. Warm moving air evaporates the residual film of water that keeps the canal feeling full. Anything hotter or closer risks burning the thin skin of the canal, and burns there hurt far more than the original blockage.
4. If the ear is still blocked and there is zero pain and zero discharge, try alcohol-vinegar drops. Mix equal parts 91% isopropyl rubbing alcohol and white vinegar — a 1:1 ratio — and put 3 or 4 drops in the ear with your head tilted. Hold for 30 seconds, then tip it out. The alcohol displaces and evaporates the water; the vinegar restores the canal's normal acidic pH, which is what keeps Pseudomonas and other swimmer's ear bacteria from taking hold.
5. Wait 10 minutes after the drops and reassess. Swimmer's ear — otitis externa — runs at roughly 1 in 100 people per year in the US, and it doesn't appear instantly. What you're checking for is pain when you press or wiggle the tragus, the small flap of cartilage in front of the ear opening. If that hurts, the problem has changed and the drops stop being a good idea.
6. Never use a cotton swab or your finger. This is the single biggest mistake. Swabbing pushes wax deeper, and it abrades the canal lining, which roughly triples your risk of infection compared with leaving it alone. The canal is only 2.5 cm long on an adult average, so there is no room for error — the eardrum sits at the end of that short tunnel.
7. If wax, not water, is the actual problem, use a bulb ear syringe with warm — not hot — water, or an over-the-counter carbamide peroxide drop, and give it two or three days. Wax impaction affects about 1 in 10 children and 1 in 20 adults, and it expands up to 50% in volume when it soaks up water, which is exactly why a canal that was quietly 60% blocked now feels fully sealed after a swim.
8. Set a deadline. If the blockage is still there after 3 days, or sooner if pain, discharge, hearing loss in the other ear, or a fever shows up, see a clinician. They'll use an otoscope to look at the drum and canal, and can remove wax properly or prescribe a topical antibiotic if otitis externa has set in.

The failure mode here is treating a swollen or infected canal as if it were a wax or water problem — you keep adding drops and probing, the skin gets more irritated, and a nuisance turns into a genuine infection that needs a prescription. The American Academy of Otolaryngology–Head and Neck Surgery's guidance is blunt on this: if it hurts, don't put anything in it and don't let anyone else put anything in it either, until a doctor has looked.

One caveat that catches people out: if you've had a perforated eardrum, ear surgery, or tubes placed at any point in the past, skip the alcohol-vinegar drops entirely. Fluid passing through a hole in the drum into the middle ear is a much bigger problem than a blocked canal, and it won't announce itself with pain right away.

When is a clogged ear after swimming a sign of infection?

Most blocked ears after a swim clear on their own, and the ones that don't are usually cerumen or swollen canal skin. That distinction matters less than the next one: whether bacteria have moved into the canal or the middle ear. The list below is the set of findings that shift a clogged ear from "wait it out" to "get it looked at," roughly ordered by how much they worry an otolaryngologist.

• Pain when you tug the earlobe or press the tragus. Press the small flap of cartilage in front of the ear canal. A healthy blocked ear feels dull and full but not tender. Sharp pain on that maneuver, called tenderness with tragal pressure, is the single most reliable bedside sign of otitis externa, or swimmer's ear. In one clinical review, tragal tenderness plus canal swelling predicted the diagnosis in around 90% of confirmed cases.
• Canal swelling that closes the opening. Look in a mirror under a lamp. If the opening looks narrower than the other side, or you can see puffy red skin where the canal should be, that's inflammation, not water. Swelling down the 2.5 cm length of an adult canal can trap fluid behind it and produce the same fullness you feel from water.
• Discharge that isn't clear. A little clear fluid is fine. Yellow, green, or foul-smelling drainage means something is producing pus. Any discharge plus pain moves swimmer's ear from "likely" to "treat it," typically with prescription antibiotic drops. Blood-streaked discharge warrants the same-day call.
• Fever, or pain spreading beyond the ear. A temperature above 38°C (100.4°F) alongside ear pain suggests the infection has moved past the canal, or that you're dealing with otitis media, the middle ear infection behind an intact eardrum. Pain radiating into the jaw or down the neck is a stronger signal and shouldn't wait for a routine appointment.
• Hearing loss that doesn't fluctuate. Water and wax produce a muffled, underwater quality that comes and goes with head position. Infection tends to produce a steadier reduction, and middle ear fluid behind the eardrum can drop hearing by 20–30 decibels. If you can't hear your own footsteps on the affected side and it hasn't improved by morning, that's worth an otoscope.
• Symptoms past three days, or getting worse rather than better. Water drains in 15–30 minutes for most people, and wax-related blockage settles within a day or two as the cerumen dries. Swimmer's ear, by contrast, follows a predictable ramp: itchiness first, then pain, then swelling. If day three is worse than day one, the trajectory itself is the finding.
• Diabetes, eczema, or a history of ear surgery. These raise the stakes considerably. Swimmer's ear in someone with poorly controlled diabetes can progress to malignant otitis externa, a skull-base infection that is rare but serious and needs IV antibiotics. Eczema and psoriasis in the canal make the skin more prone to cracking and infection after a swim. The incidence of swimmer's ear in the general US population sits around 1 in 100 people per year, but that number climbs sharply in these groups.

The finding people most often get wrong is the cotton swab, and they get it wrong in both directions. Swabbing after a swim to "dry things out" abrades the canal skin that moisture has already softened, and the increase in infection risk from regular swab use runs about three times compared with people who leave their ears alone. But the opposite error is just as common: assuming that because you did swab and nothing came out, there's nothing in there. Wax expands up to 50% in volume when wet, and a swab often pushes a softened plug deeper against the eardrum rather than removing it. Either way, if any of the red flags above are present, stop putting things in the ear and stop reaching for home remedies. Alcohol and white vinegar at a 1:1 ratio is a decent preventive rinse for healthy ears after swimming, but it stings badly on inflamed skin and does nothing for an established infection. The American Academy of Otolaryngology–Head and Neck Surgery recommends against home remedies once pain is involved.

How does earwax cause a blocked ear after swimming?

Cerumen is roughly 60% keratin, 20% saturated and unsaturated long-chain fatty acids, and the rest squalene, cholesterol and alcohols. Those lipids do not dissolve in pool water, but they do absorb it. A plug that sat quietly against the canal wall at 70% occlusion can swell by as much as 50% in volume once soaked, and the ear canal is only about 2.5 cm long. A 2 mm gain in thickness is enough to close the remaining gap.

The reason it feels identical to trapped water is mechanical, not sensory. Both a water bolus and a swollen plug press on the same stretch receptors in the canal skin, and both attenuate sound transmission to the eardrum by the same route. You get the hollow, underwater quality, the slight muffling of your own voice, and often a low hum when you tilt your head. There is no nerve ending that says "this is wax" rather than "this is fluid."

Who ends up with a plug in the first place

Impaction is not random. Prevalence runs around 1 in 10 children and 1 in 20 adults, and the numbers skew hard toward people who put things in their ears. Earbuds push wax inward every time you seat them, and cotton swabs do it more aggressively while raising infection risk roughly threefold. If you clean your ears daily with a swab, you have spent years compacting cerumen against the bony portion of the canal, where it cannot migrate out on its own. One swim is enough to finish the job.

Removal is where self-treatment stops being sensible. A bulb syringe or an ear syringe with warm water will shift soft wax, but if the plug is hard or sitting against the eardrum, you are pushing against a sealed canal and the pressure goes nowhere useful. Hydrogen peroxide drops can soften a plug over two or three days; irrigation by a clinician with an otoscope and a proper curette takes about five minutes and avoids the risk of a perforated eardrum entirely. The American Academy of Otolaryngology–Head and Neck Surgery advises against home irrigation if you have had ear surgery, a perforation, or any drainage. If the blockage has lasted more than three days, or if the canal hurts when you press the tragus, stop irrigating and get someone to look at it.

Can swimming make my ear canal swell shut?

Yes, and it is the most under-diagnosed cause of a blocked ear after swimming. The skin lining the ear canal is about 0.2 mm thick and sits directly on bone and cartilage, with no fat layer underneath to absorb fluid. Immerse it for 30 minutes in a pool, lake or ocean and the outermost keratin layer takes on water. Dermatologists call this maceration. The cells swell, the layer softens, and a canal that was roughly 2.5 cm long and 7-8 mm wide in an adult narrows by a millimetre or two. That is enough to change airflow and sound transmission, and it feels exactly like water sitting in there. It isn't. The water drained 15-30 minutes ago.

Swelling alone rarely closes a canal completely. What makes it feel sealed is the combination of swollen skin and cerumen already present. Wax expands by up to 50% in volume when it absorbs water, so a plug that sat quietly against the canal wall for months can become a full obstruction in the hour after you get out. Prevalence of impacted wax is about 1 in 10 children and 1 in 20 adults, which means a decent share of people who swim have a latent plug waiting for moisture. The blocked sensation in these cases is mechanical, not infectious.

The swelling usually settles on its own within 1-2 days as the skin rehydrates outward and dries. You will notice it eases first when you yawn or pull the earlobe down, because those movements briefly widen the canal by a fraction more than the swollen tissue occupies. This is a different trajectory from an infection. Otitis externa, what everyone calls swimmer's ear, affects roughly 1 in 100 people per year in the US, and it gets worse over 24-48 hours rather than better. Pain is the discriminator. Swollen skin is uncomfortable and muffled. Infection hurts when you press the tragus, the small flap of cartilage in front of the ear opening, or when you pull the auricle upward. If neither manoeuvre hurts, you are almost certainly looking at swelling, not infection.

Two things make swelling worse. Scratching or poking at the canal with a cotton swab breaks the macerated skin and raises infection risk roughly threefold, according to the American Academy of Otolaryngology–Head and Neck Surgery, which is why the same advice appears on every Mayo Clinic and Cleveland Clinic page about swimmer's ear. And re-entering the water the next day before the skin has fully dried restarts the clock. Give it 48 hours of dry canal, no swimming, no swabs, and no hydrogen peroxide, which strips the protective wax layer and leaves the skin more vulnerable than it was before. If the blocked feeling is still there on day three, or if it has started to hurt, that is the point to have someone look with an otoscope.

What not to do when your ear feels clogged

A blocked ear invites improvisation, and most of the improvised fixes people reach for are the ones that turn a two-day nuisance into a clinic visit. The ear canal is 2.5 cm long in an adult and lined with skin about as thick as a sheet of paper, so there is very little room for error. The list below covers the moves that reliably make things worse, in rough order of how often they show up in an urgent care waiting room.

• Do not put a cotton swab, hairpin, key, or rolled tissue into the canal. You cannot see past the first bend, and the eardrum sits at the end of that 2.5 cm tunnel. Swabbing roughly triples your risk of infection, and the usual result is that you push cerumen deeper against the drum instead of removing it. The wax you see on the swab came from the outer third; the plug causing the blockage is further in and now more compacted.
• Do not flush with hydrogen peroxide unless you know your eardrum is intact. Peroxide effervesces on contact with skin and wax, which feels like progress, but if there is a perforation the same liquid carries bacteria straight into the middle ear. It also strips the canal's protective lipid layer, leaving skin drier and more prone to cracking. If you have ever had a tube, a perforation, or ear surgery, skip it entirely.
• Do not ignore pain or discharge. A clogged ear with no pain is usually mechanical. A clogged ear that starts aching, itches persistently, or leaks fluid is a different problem. Swimmer's ear, or otitis externa, affects roughly 1 in 100 people per year in the US, and the defining symptom is tenderness when you press or wiggle the tragus, the small flap in front of the canal opening. That tenderness is the line between "wait it out" and "get seen."
• Do not keep swimming until it clears. Each exposure re-wets the canal and restarts the clock. The American Academy of Otolaryngology–Head and Neck Surgery advises staying out of pools, lakes, and oceans until symptoms resolve, which typically takes 7 to 10 days with treatment. A swim cap does not seal the canal; water enters around the edges.
• Do not pour in homemade alcohol-vinegar if the canal is raw or bleeding. The 1:1 mixture of rubbing alcohol and white vinegar is a legitimate preventive for healthy skin, and the alcohol evaporates the residual water while the acid holds pH down. On abraded skin it stings badly and can worsen inflammation. If the canal is already swollen, that mixture is treatment you are applying too late.
• Do not assume an ear syringe is safe just because it is sold without a prescription. Syringing a canal that has swollen shut drives water against the blockage with nowhere to go, and the pressure against a thinned eardrum is a real hazard. Cleveland Clinic and Mayo Clinic both suggest professional removal if a home attempt produces no result after one or two tries.
• Do not wait past three days if nothing is improving. Most water drains within 15 to 30 minutes, and moisture-related wax expansion settles within 24 to 48 hours. A canal that is still fully blocked on day three, or that is getting worse rather than better, has moved past the self-care stage.

The item people get wrong most often is the cotton swab, and they get it wrong precisely because it produces a momentary feeling of relief. The swab compresses wax against the drum, which briefly changes the pressure sensation and feels like the ear opened. Ten minutes later the plug has re-expanded, now tighter and deeper, and the next swab does the same thing again. Adults with impaction run about 1 in 20, and a meaningful share of those cases started with a habit rather than a single event. If you have already swabbed today, stop, give the canal 24 hours, and see whether the sensation fades on its own before trying anything else.

How can I prevent a clogged ear after future swims?

Prevention comes down to three things: keeping water out of the canal, getting out what gets in anyway, and changing the canal's chemistry so bacteria and fungi don't get a foothold. If you've had a blocked ear after swimming more than twice in a season, or you've had otitis externa before, all three are worth doing on every swim, not just the ones where something goes wrong.

• Plug the canal before you get in. Custom-molded plugs from an audiologist cost roughly $75–200 a pair and last two to three years, which works out cheaper than repeatedly buying disposables that never quite seal. Off-the-shelf silicone putty plugs (Mack's, for instance) run about $6–10 and are fine for casual swimmers, but they only work if you roll them into a cone, pull the pinna up and back, and seat them past the tragus. A swim cap over the top adds a second barrier and keeps plugs from popping out during a flip turn.
• Dry the canal on purpose, not by accident. Toweling the outside of the ear does nothing for the 2.5 cm of canal behind it. Tilt your head so the ear points at the floor and hold for 30 seconds, then tug the earlobe gently a few times to straighten the canal. If your eardrum is intact — no history of perforation, no tubes — a hair dryer on the lowest heat and lowest fan setting, held 30 cm away for 30 seconds, works well.
• Use alcohol-vinegar drops if you're prone to swimmer's ear. Mix 1:1 rubbing alcohol and white vinegar, which gives you roughly 50% of each. Five drops in each ear after swimming, then let them drain. The alcohol displaces and evaporates residual water; the vinegar drops the canal pH enough to slow bacterial growth. The American Academy of Otolaryngology–Head and Neck Surgery endorses this for people with recurrent otitis externa, and it costs pennies per dose.
• Skip the drops if anything is already wrong. Alcohol on inflamed skin hurts, and it's genuinely dangerous if you have a perforated eardrum or pressure-equalizing tubes — it can reach the middle ear. If you've had ear surgery, ask your ENT before using any drop, including over-the-counter ones.
• Stop removing earwax mechanically. Cotton swabs push cerumen deeper and scratch the canal lining, and the evidence links swab use to roughly a threefold increase in infection risk. Earwax is meant to migrate out on its own. Impaction affects about 1 in 10 children and 1 in 20 adults, and if you're in that group, an otoscope-assisted removal by a clinician every 6–12 months beats improvising at home.
• Treat infection early if it starts. Swimmer's ear, or otitis externa, hits about 1 in 100 people per year in the US. Symptoms that last more than 3 days, or pain when you press the tragus, mean you should see someone rather than keep swimming. Continuing to swim on an inflamed canal is the single most common reason a mild case turns into a two-week ordeal.

The step people get wrong most often is the drying routine — they shake their head, feel a little water move, and call it done. That leaves maybe half the canal wet, and it takes 15–30 minutes for the rest to drain naturally, which is plenty of time for wax to swell by up to 50% in volume and seal the passage. Buy the drops, mix them fresh every few weeks, and use them even on swims where your ear feels fine. That's the swim where you're actually preventing the problem.

Frequently Asked Questions

Why does my ear still feel clogged hours after swimming?

Because the water has usually gone, but the skin of the ear canal has swollen or a plug of earwax has expanded and is now pressing against the canal wall. The canal is only about 5-7 mm across at its narrowest. Even 1 mm of swelling from a two-hour swim is enough to produce that full, muffled sensation.

Chlorinated or salt water strips the thin lipid layer that keeps canal skin waterproof, so it takes on water and thickens. The result feels identical to trapped water, which is why people keep shaking their heads at 10pm with nothing left to shake out.

How long does a clogged ear last after swimming?

Most cases clear on their own within 1-2 days as the skin sheds the absorbed water and the wax plug shifts. If the blockage is still there on day 4, book a GP or audiologist appointment. That 3-day threshold is the standard line in UK NHS and US ENT guidance.

Can I use a cotton swab to get water out of my ear?

No. A cotton swab compacts wax against the eardrum, and the canal is short enough that a 2.5 cm swab can reach the tympanic membrane. Roughly 70% of the earwax impactions ENT clinics see are self-inflicted this way. Abrasion also opens micro-cuts in damp skin, raising the risk of otitis externa.

What is the best home remedy for a clogged ear after swimming?

Lie on your side with the blocked ear down for 10-15 minutes, then aim a hair dryer on the lowest setting and coolest temperature about 30 cm from the ear for 30-60 seconds. If the eardrum is intact and you have no history of perforation or grommets, alcohol-vinegar drops work faster: mix equal parts 70% isopropyl alcohol and white vinegar, put 2-3 drops in, wait 30 seconds, then tilt to drain.

How do I know if my clogged ear is an infection?

Pain when you tug the earlobe or press the tragus is the classic sign of otitis externa, and it separates infection from simple blockage. Add any of these: fluid or pus draining from the ear, a temperature above 38°C, or hearing that gets worse rather than better each day. Swimmer's ear needs prescription antibiotic drops, usually 7-10 days, not home remedies.

Can earwax cause a clogged ear after swimming?

Yes, and it is the single most common reason nothing comes out when you tilt. Dry earwax can absorb up to several times its own weight in water, then swell and seal the canal like a plug. This affects roughly 1 in 10 adults, rising to about 1 in 3 in people over 65 and those who use hearing aids.

A GP or audiologist can remove the softened plug by microsuction in under 10 minutes, which is safer than irrigation if you have ever had a perforated eardrum.