Sudden Hearing Loss: Why Same-Day Assessment Matters

Sudden hearing loss can be frightening. Some patients wake up unable to hear properly in one ear. Others notice a blocked sensation, ringing, distortion, pressure or imbalance that appears over hours or a few days.

Many cases are caused by earwax, an ear infection or fluid behind the eardrum. However, sudden sensorineural hearing loss, often abbreviated to SSNHL, is an ENT emergency because there may be a short treatment window in which steroids are most effective.

At Hampshire ENT Clinics, we assess ear blockage, hearing loss, tinnitus and ear pain, but sudden unexplained hearing loss should be treated as urgent. If you cannot access prompt review, contact NHS 111, your GP urgent service or attend an emergency department.

Quick answer: what should I do if I suddenly lose hearing?

If you develop sudden hearing loss in one or both ears, especially over 72 hours or less, seek urgent medical assessment the same day. Do not assume it is wax. A clinician needs to check the ear canal and eardrum and decide whether the hearing loss is conductive or sensorineural.

Why sudden hearing loss is time-sensitive

Sudden sensorineural hearing loss affects the inner ear or hearing nerve. It is different from a blocked ear caused by wax or infection. In SSNHL, the ear canal may look normal, but hearing is reduced because the inner ear is not transmitting sound normally.

Treatment often involves steroid medication, either as tablets or sometimes steroid injections through the eardrum in specialist settings. The earlier the diagnosis is considered, the better the chance that appropriate treatment can be started within the effective window.

Common causes of sudden hearing loss

Sudden hearing loss may be conductive or sensorineural. Conductive causes include earwax, otitis externa, middle ear infection, glue ear, eardrum perforation or fluid behind the eardrum. Sensorineural causes include SSNHL, viral inner ear inflammation, Ménière’s disease, acoustic trauma, head injury and, rarely, other neurological or inner ear disorders.

Because the causes differ so much, self-diagnosis is risky. A patient may feel that the ear is simply blocked, but the examination can be normal in sudden sensorineural hearing loss.

Symptoms that should raise concern

Red flags include sudden hearing loss in one ear, hearing loss with new tinnitus, hearing loss with vertigo, rapidly worsening hearing over days, hearing loss after head injury, hearing loss with facial weakness or numbness, and hearing loss with severe infection or discharge.

If any neurological symptoms occur, such as facial weakness, slurred speech, severe imbalance, new double vision or limb weakness, emergency medical care is required.

What happens at assessment?

Assessment usually includes a history, examination of the ear canal and eardrum, tuning fork tests and, where available, an urgent hearing test. The aim is to determine whether sound is being blocked before it reaches the inner ear, or whether the inner ear/hearing nerve is affected.

If wax or infection is clearly responsible, treatment can be directed at that cause. If SSNHL is suspected, urgent ENT management and steroid treatment may be required. Some patients later need MRI imaging to assess the hearing nerve and inner ear pathway.

Why wax removal alone is not always enough

Earwax is a very common cause of blocked hearing and microsuction can be highly effective when wax is the cause. The difficulty is that a sudden blocked sensation can also occur in SSNHL.

If wax is removed but hearing remains reduced, or if the ear examination is normal, urgent hearing testing and ENT assessment are important. Persistent sudden hearing loss should not be dismissed.

Treatment options

Treatment depends on the cause. Wax can be removed by microsuction or other safe techniques. Ear infections may require topical treatment, aural toilet or medication. Sudden sensorineural hearing loss is commonly treated with steroids after appropriate clinical assessment.

Patients may also need tinnitus support, hearing rehabilitation, follow-up hearing tests, balance assessment or imaging depending on the diagnosis and recovery.

How Hampshire ENT Clinics can help

Hampshire ENT Clinics provides consultant-led assessment for ear blockage, hearing loss, tinnitus, recurrent infections and ear pain. For sudden hearing loss, the key message is urgency: seek same-day assessment first, and arrange specialist follow-up promptly.

Our clinics serve patients across Winchester, Portsmouth, Southampton, Salisbury and the wider South Coast.

Frequently asked questions

Is sudden hearing loss an emergency?

Yes, sudden unexplained hearing loss can be an ENT emergency. Same-day assessment is recommended, especially if it develops over 72 hours or less.

Could sudden hearing loss just be wax?

Yes, wax is common, but it is not safe to assume. The ear needs to be examined and hearing may need testing.

What is sudden sensorineural hearing loss?

It is sudden hearing loss caused by a problem in the inner ear or hearing nerve rather than a blockage in the ear canal or middle ear.

Why are steroids used?

Steroids may reduce inflammation in sudden sensorineural hearing loss. The decision depends on clinical assessment, timing and patient-specific risks.

How quickly should I be seen?

Same-day assessment is ideal. If you cannot access prompt care privately, contact NHS 111, your GP urgent service or an emergency department.

Can sudden hearing loss affect both ears?

It can, although one-sided sudden hearing loss is more common. Bilateral sudden hearing loss should be treated particularly seriously.

Do I need a hearing test?

Usually yes. An audiogram helps confirm the type and severity of hearing loss and guides treatment.

Can tinnitus happen with sudden hearing loss?

Yes. New tinnitus with sudden hearing loss is a common presentation and should prompt urgent assessment.

Will my hearing recover?

Some patients recover fully, some partially and some have persistent hearing loss. Early assessment improves the chance of appropriate treatment.

Can Hampshire ENT Clinics treat sudden hearing loss?

Hampshire ENT Clinics can provide specialist ENT assessment and follow-up. The immediate priority is same-day medical assessment if the hearing loss is sudden or unexplained.