When to see an audiologist instead of buying a device
Quick answer
A short list of symptoms, sudden hearing loss, a marked difference between the ears, ear pain, drainage, dizziness, ringing with neurological signs, a suspected earwax blockage, or being under 18, are long-standing referral criteria that call for a doctor rather than a device, and the over-the-counter hearing aid rule does not change any of them. Sudden hearing loss in particular is treated as urgent, with the usual treatment window measured in days.
Most of this site is about choosing between hearing devices. This page is about the situations where that choice does not apply yet, because something needs a clinician's attention before any device, OTC or prescription, is the right next step.
None of the symptoms below are diagnosed here, and nothing on this page or anywhere else on this site can diagnose them. What follows is simply the list of long-standing referral criteria used in hearing care, given so that a reader can recognise when to make a call rather than place an order.
Which symptoms call for a doctor rather than a purchase?
Any one of these eight situations is a reason to contact a doctor, and the OTC rule does not create an exception for any of them.
| Symptom | Why it matters |
|---|---|
| Hearing loss that came on suddenly | Sudden sensorineural hearing loss is treated as urgent, with a treatment window usually measured in days |
| Loss in one ear, or a marked difference between ears | Asymmetry is investigated rather than amplified; OTC devices are not intended for it |
| Ear pain or discomfort | Points to something happening in the ear itself, a medical question rather than an amplification one |
| Fluid or drainage from the ear | Needs examination; a device should not be placed into a draining ear |
| Dizziness or vertigo | The balance and hearing systems share the inner ear, so both are investigated together |
| Ringing with weakness, numbness or facial changes | Tinnitus with neurological signs is evaluated promptly rather than managed at home |
| A visible or suspected earwax blockage | Wax is removed before hearing is assessed, since a blockage alone can account for a change |
| Being under 18 | OTC hearing aids are adults only; devices for children are prescription, fitted by a paediatric audiologist |
Why doesn't the OTC hearing aid rule change any of this?
Because the 2022 FDA rule created a new way to buy a hearing aid for a specific, narrow situation, adults with perceived mild to moderate loss and none of the symptoms above. It did not change what any of these symptoms mean or how urgently they should be handled. A person under 18, a person with loss in one ear only, and a person with any of the red flags above are all still squarely in prescription-care territory regardless of how easy an OTC device is to order online, and regardless of what a listing claims a device can do. See what is an OTC hearing aid for the full boundary.
What generally happens at an audiologist visit?
A comprehensive evaluation typically includes a review of history and symptoms, an otoscopic look into the ear canal to check for a blockage, and audiometric testing that produces an audiogram, the chart explained on our how to read your audiogram guide. From there, the audiologist determines whether amplification is appropriate at all, and if so, what kind, rather than a device app making that determination on its own.
What if none of these symptoms apply?
If hearing has simply become harder to follow gradually, over months or years, without any of the symptoms above, that is a very different situation from an urgent one, and it is the situation the OTC hearing aid category was actually built around. A comprehensive evaluation is still worth having at some point, since it is the only way to know the actual degree and pattern of any change, but nothing here suggests that gradual, symptom-free hearing change needs to be treated as an emergency the way sudden loss does. Once that is clear, a device such as MDHearing VOLT 4 or Jabra Enhance Select 700 becomes a reasonable next thing to look at, and our what is an OTC hearing aid and choosing your first hearing aid guides pick the decision up from there.
Common questions
- What actually counts as "sudden" hearing loss?
- Generally, a noticeable drop in hearing, often in one ear, that develops over a matter of hours to a few days rather than gradually over months or years. It is treated as a medical urgency because the usual window for attempting treatment is measured in days. Any sudden change in hearing is worth a same-week call to a doctor rather than a wait-and-see approach.
- Is ordinary ringing in the ears by itself a reason to see an audiologist?
- Tinnitus alone is common and is not automatically an emergency, but it becomes a red flag when it appears alongside weakness, numbness or facial changes, which points to a neurological question rather than a purely auditory one. Persistent tinnitus without those signs is still worth mentioning at a routine hearing evaluation, just not on an urgent basis.
- Can an OTC hearing aid be used for hearing loss in one ear only?
- No. Loss confined to one ear, or a marked difference between the ears, is specifically excluded from what OTC devices are intended for. Asymmetric hearing loss is investigated by a doctor rather than amplified, because it can have causes that need to be identified before any device is considered appropriate.
- What should someone under 18 with hearing concerns actually do?
- See a doctor or a paediatric audiologist rather than buying any consumer hearing device. Over-the-counter hearing aids are for adults 18 and over only, by design. Hearing devices for children remain prescription, fitted as part of a full evaluation that accounts for a growing ear and developing auditory system, which a self-fitted adult device is not built to do.
- How urgent is a suspected earwax blockage compared with the other red flags?
- It is less time-critical than sudden hearing loss but still worth addressing before assuming a hearing change is permanent. A blockage alone can account for muffled hearing, and wax removal is a routine, low-risk procedure. It is generally handled before any hearing assessment, since a blocked ear canal can make a completely different question look like hearing loss.
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Last updated 2026-09-17.