Audiology Services
Earwax, or cerumen, is normal and healthy. Specialized glands in the ear canal produce it for a reason: this slightly oily substance is your ears' own self-cleaning mechanism, trapping dust, dead skin cells, debris, and bacteria and then migrating outward on its own as you talk and chew. Trouble starts only when wax builds up faster than it clears, hardens against the eardrum, or gets pushed deeper by a cotton swab. At that point it can muffle hearing, cause a plugged or full feeling, contribute to a sense of imbalance, trigger or worsen tinnitus, and make hearing aids whistle or stop working.
Some people simply produce more wax than their ears can expel, and that overproduction is what leads to buildup and impaction. At California Hearing Center, wax is removed under direct visualization by clinicians who examine the canal and eardrum first. That matters: a blockage that looks like simple wax can sometimes hide an ear infection, a perforation, or other issues that change how removal should be done, or whether it should be done at all.
Our San Mateo and San Carlos offices handle routine buildup and the stubborn, impacted wax that at-home kits could not clear, using professional-grade equipment so the canal is cleared completely without risking damage.
At a glance
- Wax is normal and self-clearing; only buildup or impaction needs professional removal.
- Cotton swabs and ear candling can make things worse and cause injury.
- Because wax is a reversible cause of muffled hearing and fullness, it is worth checking before assuming permanent loss.
Signs your ears may be blocked
The classic clues are a sudden drop in hearing, a muffled or underwater quality to sound, a plugged or full sensation, an earache, or ringing that seems louder. Because a fully occluded canal can also leave you feeling slightly off balance, wax is worth ruling out when these symptoms appear together. Many patients are relieved to learn the cause was simply cerumen.
How professional removal works
Depending on the wax and your ear health, we may use curettage (gentle lifting with a small instrument), irrigation (warm-water flushing), or microsuction (low-pressure vacuum). Microsuction and curettage let the clinician watch the canal the entire time, which is safer for narrow canals, prior surgery, or a history of perforation.
Why cotton swabs backfire
Swabs remove a little wax from the opening while packing the rest deeper against the eardrum. Over time that creates the exact impaction people are trying to prevent, and it risks scratching the canal or damaging the eardrum. The old advice holds: nothing smaller than your elbow in your ear.
Why we advise against ear candling
Ear candling is not supported by evidence and carries real risks, including burns, wax from the candle dripping into the canal, and eardrum injury. It does not create meaningful suction or pull wax out. We do not offer it and gently steer patients away from it.
When wax is behind hearing loss or tinnitus
A full canal can reduce hearing by blocking sound and can make ringing or a blocked sensation more noticeable. Because wax is a reversible cause, we often check for it as part of a hearing evaluation before assuming the loss is permanent.
Wax and hearing aids
Wax is the leading cause of hearing aid malfunction. It clogs receivers and blocks the tiny sound ports and vents. Keeping the canal clear protects your devices and keeps them sounding right, which is why we combine wax care with repairs and servicing when needed.
Frequently asked questions
What patients often want to know
Is professional earwax removal safe?
When performed by a trained clinician who examines the ear first, removal is safe and comfortable for most people. Watching the canal directly during curettage or microsuction lowers the risk of injury compared with blind at-home tools.
Can earwax really cause hearing loss?
Yes. A canal fully blocked by wax can noticeably reduce hearing and create a plugged, full feeling, and it can even affect your sense of balance. This type of loss is usually temporary and improves once the blockage is cleared.
Should I use at-home wax removal kits?
Softening drops help some people, but irrigation kits and swabs can push wax deeper or irritate the canal, especially with narrow canals, prior ear surgery, or a perforation. If home care is not clearing it, call 650-342-9449 to have it looked at.