Excessive earwax usually comes down to a combination of genetics, anatomy, and habits. Your body produces earwax (cerumen) as a protective barrier that traps dust, bacteria, and debris before it reaches your eardrum. But some people consistently produce more than others, or their ear canals don’t clear wax efficiently, leading to buildup and sometimes full blockage. Understanding what’s driving your overproduction can help you manage it.
Your Genes Determine Wax Type and Volume
A single gene called ABCC11, located on chromosome 16, controls whether you produce wet or dry earwax. People with wet earwax (the majority of those with European or African ancestry) carry gene variants that produce a protein responsible for transporting fats across cell membranes more effectively. This means more lipid-rich, sticky wax. People with the dry earwax variant (common in East Asian populations) produce a version of that protein that moves fewer fats, resulting in flaky, gray wax that tends to fall out on its own.
If you have wet-type earwax, you’re inherently more likely to experience buildup because the wax is stickier and clings to the walls of the ear canal rather than migrating outward. This is the single biggest biological factor in chronic overproduction, and it’s something you’re born with.
Ear Canal Shape and Size
Not all ear canals are the same diameter or curvature. Narrow or sharply curved canals leave less room for wax to travel outward naturally. The ear has a built-in self-cleaning mechanism: tiny hairs and the movement of your jaw during chewing and talking slowly push old wax toward the opening. When the canal is narrow, this conveyor belt gets jammed more easily. Even a normal amount of wax production can become a problem if there isn’t enough space for it to exit.
Age Makes Buildup More Likely
Earwax impaction becomes significantly more common as you get older. Age-related changes in the ear canal contribute to this. The skin lining the canal gets drier and produces wax that’s harder and less mobile. Hair growth in the ear canal increases, which can trap wax rather than push it out. The cartilage of the ear also changes shape slightly over time, sometimes narrowing the canal. If you’ve noticed wax becoming a problem in your 50s or 60s when it never was before, this is the most likely explanation.
In children, earwax impaction affects roughly 10% of kids in developed countries, with higher rates in younger populations. In adults over 65, impaction rates are considerably higher, making it one of the most common reasons older adults visit their doctor for ear-related complaints.
Earbuds and Hearing Aids Block Natural Clearing
Anything you put in your ear canal regularly interferes with the self-cleaning process. Earbuds, hearing aids, earplugs, and in-ear monitors all physically block wax from migrating outward. If you wear headphones for many hours every day, wax accumulates because the devices prevent the natural outward movement. They can also irritate the skin and cartilage of the outer ear canal, which may stimulate the glands to produce even more wax as a protective response.
Hearing aid users face a double problem: the devices both block wax clearance and create a warm, moist environment inside the canal that changes the consistency of the wax. If you’ve started wearing hearing aids and noticed more wax buildup, this is a well-documented cause.
Cotton Swabs Push Wax Deeper
This is the most common self-inflicted cause of excessive earwax. Using a cotton swab acts like a plunger in the ear canal, pushing wax deeper with each pass. Once wax is pushed past the point where the canal’s natural cleaning mechanism can reach it, there’s no way for it to get swept out on its own. Over weeks and months, repeated swab use compacts wax against the eardrum into a hard plug.
The irony is that most people use cotton swabs because they feel like their ears are waxy. But the swabs are creating the very problem they’re trying to solve. The outer third of your ear canal is the only part that produces wax, and it’s also the only part you’d ever need to clean. A damp washcloth over your finger handles that job without pushing anything deeper.
Diet and Earwax Production
The scientific evidence linking food to earwax is limited and mostly anecdotal, but there is a plausible biological connection. Eating a diet high in fat can increase sebum production throughout the body, including in the glands that produce earwax. Since earwax is partly composed of these fatty secretions, more sebum can mean more wax. People with wet-type earwax, which already contains a higher volume of fat-based secretions, appear to be more susceptible to this effect.
Spicy foods may also play a role by temporarily boosting sebum output, adding more lipid content to earwax and increasing its overall volume. This isn’t a major driver for most people, but if you’ve noticed your ears feel more clogged after dietary changes, the connection isn’t imaginary.
Medical Conditions That Cause Buildup
A less common but important cause is keratosis obturans, a condition where keratin (the protein that forms skin, hair, and nails) accumulates inside the ear canal. Instead of shedding normally, skin cells build up in layers, creating a dense plug that goes beyond ordinary earwax. The exact cause isn’t fully understood, but it may involve abnormal skin cell production in the ear canal or overstimulation of the wax glands by the nervous system.
Skin conditions like eczema and psoriasis that affect the ear canal can also alter wax production. Inflamed skin tends to shed more cells, which mix with cerumen and create thicker, more obstructive buildup. People with these conditions often need professional ear cleaning more frequently than others.
Individuals with intellectual disabilities also experience higher rates of earwax impaction, partly because they may be less able to report symptoms and partly because regular ear care is sometimes overlooked.
Signs Your Earwax Has Become a Problem
Earwax only needs attention when it causes symptoms. Gradual hearing loss in one or both ears is the most common sign of impaction. You might also notice a feeling of fullness or pressure, ringing or buzzing sounds (tinnitus), or dizziness. Some people experience ear pain, though this is less common with simple wax buildup and may suggest an infection or another issue.
A key detail: hearing loss from earwax is temporary and fully reversible once the blockage is removed. Even a small gap between the wax plug and the ear canal wall allows sound through, so symptoms can come and go. Many people notice sudden muffling after a shower, when water causes the wax to swell and close that last gap.
Safe Ways to Manage Excess Wax
If your ears produce more wax than average, the goal isn’t to eliminate wax entirely. It’s protective. The goal is to prevent impaction. A few drops of mineral oil, baby oil, or over-the-counter ear drops once or twice a week can soften wax and help it migrate out naturally. Let gravity do the work by tilting your head to the side for a few minutes after applying drops, then letting the liquid drain onto a tissue.
For stubborn buildup, a rubber bulb syringe with warm (not hot) water can gently flush softened wax. Tilt your head, pull your outer ear up and back to straighten the canal, and use gentle pressure. If you have a history of ear infections, a perforated eardrum, or ear surgery, skip the home methods and see a clinician for removal.
Ear candles have no evidence of effectiveness and carry real risks, including burns and further impaction from candle wax dripping into the canal. They should be avoided entirely. The same goes for pointed tools, bobby pins, or keys, all of which can scratch the canal lining or puncture the eardrum.