Cerumen Impaction (Earwax Blockage)
A blockage of the ear canal by earwax
Quick Facts
- Type: Ear canal blockage
- Cause: Earwax buildup
- Common trigger: Cotton swabs, hearing aids
- Main symptom: Muffled hearing and fullness
Overview
Cerumen, commonly known as earwax, is a natural substance the ear produces to protect and clean the ear canal. It traps dust and debris, keeps the canal from drying out, and helps guard against infection. Normally earwax moves slowly outward on its own and falls away without notice.
Cerumen impaction happens when wax builds up and blocks part or all of the ear canal. This can muffle hearing and cause a feeling of fullness or discomfort. It is a very common and usually harmless problem, but it can be bothersome and, in some people, lead to symptoms such as dizziness or ear ringing. Impaction is easily treated, but home attempts to dig out wax with cotton swabs often make it worse by pushing wax deeper.
Symptoms
Symptoms develop when wax blocks enough of the canal to interfere with hearing or irritate the ear.
- A feeling of fullness or plugging in the ear
- Muffled or reduced hearing
- Earache or discomfort
- Ringing in the ear (tinnitus)
- Itching in the ear canal
- Occasional dizziness or a sense of imbalance
Symptoms often appear or worsen after water gets into the ear, after using cotton swabs, or in people who wear hearing aids or earplugs.
Causes
Impaction occurs when earwax is produced faster than it clears, or when something pushes it deeper into the canal.
- Cotton swabs and objects: Inserting swabs, fingers, or other items often pushes wax inward and packs it down.
- Hearing aids and earplugs: These can block the natural outward movement of wax.
- Narrow or hairy ear canals: The shape of some canals makes wax more likely to collect.
- Overproduction of wax: Some people simply make more earwax than others.
- Aging: Wax can become drier and harder over time, making it more likely to lodge.
Risk Factors
- Regular use of cotton swabs or other objects in the ear
- Wearing hearing aids, earbuds, or earplugs
- Narrow or unusually shaped ear canals
- Older age
- A history of repeated earwax blockages
Diagnosis
Cerumen impaction is straightforward to diagnose with a simple ear examination.
- Otoscope exam: A clinician looks into the ear canal with a lighted instrument and can see the wax blocking the canal.
- Symptom review: Muffled hearing or fullness that improves after wax is removed confirms the cause.
If hearing does not return to normal after the wax is cleared, the clinician may check for other causes such as infection or a fluid problem behind the eardrum.
Treatment
Treatment removes the blocking wax, usually quickly and painlessly.
- Softening drops: Over-the-counter or prescribed ear drops, or a few drops of mineral or baby oil, can soften wax over several days.
- Irrigation: Gentle flushing of the canal with warm water, often done by a clinician, washes softened wax out.
- Manual removal: A clinician may use special instruments or suction to remove stubborn wax safely.
Avoid cotton swabs and ear candles. Ear candling is not effective and can cause burns and injury. People with ear tubes, a perforated eardrum, diabetes, or a weakened immune system should have wax removed by a professional.
Prevention
Most blockages can be avoided with gentle ear care.
- Do not insert cotton swabs, fingers, or other objects into the ear canal
- Clean only the outer ear with a washcloth
- If you produce a lot of wax, ask about periodic softening drops
- Have hearing aids cleaned and serviced regularly
- See a clinician for routine wax removal if you are prone to impaction
When to See a Doctor
See a doctor or clinician if you have persistent ear fullness, reduced hearing, or discomfort, especially if home softening does not help. Seek prompt care if you have:
- Ear pain with drainage, fever, or sudden hearing loss
- A known perforated eardrum or ear tubes, since drops and irrigation may be unsafe
- Severe dizziness along with ear symptoms
Frequently Asked Questions
Should I use cotton swabs to clean my ears?
No. Cotton swabs usually push wax deeper and pack it down, which is a common cause of impaction. Clean only the outer ear with a washcloth and let the canal clear naturally, or use softening drops if needed.
How can I safely remove earwax at home?
You can soften wax with a few drops of over-the-counter ear drops, mineral oil, or baby oil over several days, which often lets it clear on its own. Avoid inserting objects, and see a clinician if symptoms persist or you have ear tube or eardrum problems.
Are ear candles safe for removing wax?
No. Ear candling is not effective and can cause burns, wax blockage, and ear injury. It is not recommended by health authorities, and safer options such as drops or professional removal should be used instead.
Can impacted earwax cause hearing loss?
Yes. A blockage can muffle or reduce hearing, but this is temporary and usually returns to normal once the wax is removed. If hearing does not improve after removal, another cause should be checked.
When should impacted earwax be removed by a professional?
See a clinician if home softening does not help, if you have ear pain, drainage, or a fever, or if you have ear tubes, a perforated eardrum, diabetes, or a weakened immune system, since these make home removal unsafe.
References
- American Academy of Otolaryngology-Head and Neck Surgery. Earwax (cerumen impaction).
- Mayo Clinic. Earwax blockage.
- MedlinePlus, U.S. National Library of Medicine. Earwax.
- National Institute on Deafness and Other Communication Disorders (NIDCD).