About earwax: what it is, what it does, and when to act on it

What earwax actually is

Earwax - properly called cerumen - is produced by glands in the outer third of the ear canal. It is not, despite the name, a wax in the candle sense. It is a mixture of secretions from two types of gland (ceruminous and sebaceous), shed skin cells from the canal lining, and small amounts of debris that have made their way into the ear. The colour, consistency, and quantity vary considerably between people and even between ears.

The ear canal is one of the few skin surfaces in the body that cleans itself. The skin lining the canal migrates outwards from the eardrum at roughly the rate of a fingernail growing, carrying any wax with it. By the time wax reaches the outer ear, it has done its job and is ready to flake away naturally. Most people never need to think about this process - it works in the background, undisturbed.

What earwax does

The reason the body produces wax at all is that it solves several problems that the ear canal would otherwise face. Three functions matter most.

Wet versus dry earwax

One of the more interesting features of earwax is that it comes in two distinct forms, and which form a person produces is genetically determined - down to a single gene variant. Both types are normal, healthy, and provide the same protection.

• Wet earwax is sticky, soft, and ranges from honey-yellow to dark brown. It is the most common type in people of European, African, and South Asian heritage.
• Dry earwax is flaky, less sticky, and ranges from light grey to pale yellow. It is the most common type in people of East Asian, Native American, and Pacific Islander heritage.

Neither type is healthier than the other. The difference is genetic, not dietary or lifestyle-related, and there is nothing to fix in either case. The reason it sometimes gets discussed clinically is that wet wax tends to build up more visibly when it does build up, and is the more common type associated with impaction in the patients clinicians see.

When earwax becomes a problem

For the majority of people most of the time, earwax produces no symptoms and needs no intervention. The wax produced, migrates out, and is replaced quietly. The situations where earwax becomes a problem fall into a few recognisable patterns.

Distinct from these wax-related symptoms, certain symptoms point to something other than wax and need medical assessment rather than wax removal. See our page on who can remove earwax in the UK for the red-flag symptom list.

Why some people get build-up more than others

Several factors influence whether wax accumulates faster than the canal can clear it. They are predictable, though the combination varies by person.

• Narrow or unusually shaped canals simply have less room for the wax to migrate outwards. Some people are born with canals that are narrower or more sharply angled than average.
• Hearing aid use disrupts the natural outward migration of wax. The dome or mould of the hearing aid acts as a barrier, sometimes packing wax against the skin rather than allowing it to clear.
• Ear plug use, whether for sleep, swimming, or hearing protection at work, has the same effect to a lesser degree.
• Cotton buds are the most preventable cause. They feel like they are cleaning the ear; what they are actually doing is packing the deeper wax further in. The visible wax that comes out on the bud is the easy bit. The wax left behind is now firmer, deeper, and harder to clear naturally.
• Skin conditions affecting the canal lining - eczema, psoriasis, dermatitis - can change the consistency of the wax and how readily it migrates.
• Age matters because the wax tends to become drier and the canal hairs become coarser in older adults, which slows the natural clearing process.
• Frequent water exposure in swimmers, particularly in chlorinated pools, can dry the canal skin and alter wax consistency.

Most of these factors are not something to actively fix. They are part of how a person's particular ears work. Where they cause repeated build-up, a clinician can suggest a more sustainable approach rather than treating every episode as a one-off.

How to look after your ears day-to-day

For most people, the answer is "do nothing". The ear is not a body part that needs routine maintenance. There are, however, a few practical points worth knowing.

• Do not insert anything into the canal, including cotton buds, ear picks, hairpins, or fingers wrapped in tissue. The canal cleans itself. Anything you put in disrupts that process.
• Clean the outer ear with a damp flannel when you wash your face. Anything that has reached the outer ear is wax that has done its job and is on its way out; gently wiping it away is fine.
• Dry the ear after swimming or showering by tilting your head sideways. Do not insert anything to dry the inside of the canal.
• If you wear hearing aids, clean them daily with the wipes or brush supplied by your audiologist, and have the canals checked at your annual review.
• If you swim regularly, swim caps or custom swim plugs can help, particularly if you are prone to canal infections.

If wax does build up despite this, there is a sensible toolkit of approaches - from softening drops at home to the three professional methods covered on our methods page. The right approach depends on your situation, not on a fixed preference.

The myth of "deep cleaning"

One of the most stubborn ideas about earwax is that it is unhygienic and needs to be removed regularly. It is not, and it does not. The wax in your ears is doing useful work. The visible wax at the entrance to the canal is wax that has finished its work and is on its way out, which is not the same as something that needs to be excavated.

Over-cleaning is genuinely problematic. People who use cotton buds daily often find that their ears feel worse over time - drier, itchier, more prone to infections. The body responds to over-cleaning by producing more wax, and the cycle continues. The same logic applies to people who request earwax removal at clinics every few weeks regardless of symptoms. If your ears are not bothering you, they are working as designed.

For the home methods that do have a place - softening drops, careful bulb syringe use - see our complete guide to home earwax removal. For the methods that have no place, including ear candles, see our page on whether ear candles work.