Earwax builds up when your ear canal produces wax faster than it can push it out, or when something blocks the natural outward flow. Your ears are designed to be self-cleaning, but several common factors, from genetics to earbuds to aging, can disrupt that process and cause wax to accumulate.
How Your Ears Make and Remove Wax
Two types of glands line your ear canal and work together to produce earwax. Sebaceous glands, attached to tiny hair follicles, secrete an oily substance called sebum that keeps the skin inside your ears from drying out. Ceruminous glands, which are modified sweat glands, add antimicrobial proteins that protect against germs. The resulting wax is mostly sebum mixed with dead skin cells, hair, cholesterol, fatty acids, and other compounds.
Your ear canal has a built-in conveyor belt. The skin lining the canal slowly migrates outward, carrying wax and trapped debris toward the opening of your ear. In a healthy ear canal, this skin moves at roughly 0.1 millimeters per day. That’s slow, but it’s enough to keep things clear under normal circumstances. Jaw movements from chewing and talking help nudge the wax along. When this system works properly, old wax dries out, flakes off, and falls away without you ever noticing.
What Disrupts the Self-Cleaning Process
Buildup happens when something interferes with that outward conveyor belt or changes the consistency of the wax itself. The most common culprits fall into a few categories.
Pushing wax deeper. Cotton swabs are the biggest offender. Rather than removing wax, they tend to compact it further into the canal, packing it against the eardrum. Anything you insert into your ear can do this, including bobby pins, keys, or rolled-up tissue.
Blocking the exit. Earbuds, hearing aids, and earplugs physically sit in the ear canal and obstruct the natural cleaning process. If you wear headphones or earbuds for extended periods each day, you may notice more wax accumulating simply because the devices prevent it from migrating out. Hearing aid users are especially prone to impaction for this reason.
Overproduction. Some people’s glands simply produce more wax than the canal can clear. This can be a baseline trait or triggered by irritation, skin conditions like eczema, or chronic ear infections. Ironically, frequent cleaning can also stimulate the glands to produce more wax in response.
Genetics and Earwax Type
A single gene called ABCC11 determines whether you have wet or dry earwax. The wet type is sticky and yellowish-brown to dark brown. The dry type is crumbly and gray to tan. The allele for wet earwax is dominant, so you only need one copy to produce it. Wet earwax is most common in people of European and African descent, while dry earwax is more common in East Asian populations.
People with the dry earwax genotype produce less of the ABCC11 protein, which appears to be a loss of function. While dry wax might sound like it would be easier to manage, its crumbly texture doesn’t always migrate out of the canal as smoothly as the stickier wet type. Either type can lead to buildup depending on other factors, but the consistency of your wax plays a role in how efficiently your ears clear themselves.
Why Earwax Buildup Gets Worse With Age
Earwax impaction is notably more common in older adults. As you age, the cerumen glands gradually atrophy, producing drier, harder wax. This stiffer wax doesn’t travel along the canal as easily, and the ear’s self-cleaning mechanism becomes less effective at moving it out. Coarse hair growth in the ear canal, which increases with age (particularly in men), can also trap wax and slow its progress. Add hearing aid use, which is more common in older populations, and you have multiple factors compounding at once.
Impaction rates reflect this clearly. About 10% of children in developed countries experience earwax impaction, while the prevalence climbs significantly in elderly populations, particularly among those in nursing homes or assisted living.
Ear Canal Shape and Anatomy
Not all ear canals are created equal. People with naturally narrow or unusually curved canals have less room for wax to pass through, making buildup more likely. Certain conditions create physical obstacles as well. Bony overgrowths called exostoses, sometimes known as surfer’s ear because they’re triggered by repeated cold water exposure, narrow the canal and trap skin debris and wax. People with exostoses often need routine cleaning from a specialist to prevent infections.
Even without a diagnosed condition, the natural shape of your ear canal is partly why some people never think about earwax while others deal with blockages repeatedly.
Signs of a Blockage
A small amount of earwax is normal and healthy. It only becomes a problem when it builds up enough to block the canal. Common signs include a feeling of fullness or pressure in the ear, muffled hearing, tinnitus (ringing), earache, dizziness, or itching. These symptoms often affect one ear more than the other, since production and anatomy can differ between your two ears.
Hearing loss from wax impaction is temporary and resolves once the blockage is cleared, but it can be significant enough to affect daily life, especially in older adults who may already have some age-related hearing decline.
Safe Ways to Manage Buildup
The American Academy of Otolaryngology’s clinical guidelines recommend three main approaches for dealing with impacted earwax: softening drops, irrigation, or manual removal by a clinician. These can be used alone or in combination.
Softening drops (also called cerumenolytic agents) work by breaking down or loosening compacted wax. Even plain water or saline can be effective. Over-the-counter drops containing mineral oil, baby oil, or hydrogen peroxide-based solutions are widely available. You apply a few drops, let them sit for several minutes, and allow the softened wax to drain out naturally or during a follow-up irrigation.
Irrigation uses a gentle stream of warm water to flush wax from the canal. This can be done at home with a bulb syringe or at a clinic. The key is using body-temperature water, since water that’s too hot or cold can cause dizziness.
Manual removal is performed by a doctor using specialized instruments or suction. This is the safest option for people with a history of ear surgery, a perforated eardrum, or ear tubes.
The guidelines specifically recommend against ear candling, a practice where a hollow cone is lit and placed in the ear. It does not create meaningful suction, does not remove wax, and carries real risks of burns and canal obstruction from candle wax dripping in.
Preventing Repeat Buildup
If you’re prone to buildup, a few habits can help keep things manageable. Using softening drops once a week, particularly if you wear hearing aids or earbuds daily, can keep wax from hardening and accumulating. Wiping the outer ear with a damp cloth after showering is sufficient for routine cleaning. The goal is to support your ear’s natural migration process rather than fight it.
If you use hearing aids, cleaning them regularly and giving your ears breaks from the devices when possible allows the self-cleaning mechanism to work. For people with recurring impaction, scheduled cleanings with an ear specialist every six to twelve months can prevent symptoms from returning.