sudden hearing

Overview

Sudden hearing loss is a rapid drop in hearing, usually in one ear, that happens over a few hours or up to 3 days. It can range from a feeling of muffled hearing to almost complete deafness in that ear. It is also called sudden sensorineural hearing loss. Sensorineural means the issue is in the inner ear or the nerve that carries sound to the brain.

Sudden hearing loss is not common. Experts estimate it affects around 5 to 20 people in every 100,000 each year.

It can occur at any age, including in children, but it is most often seen in adults between 40 and 60 years old. It affects men and women equally.

Symptoms

Common symptoms

• A sudden feeling that one ear is blocked or full
• Difficulty hearing in one ear, from mild muffling to no hearing at all
• Ringing, buzzing, or hissing sounds in the affected ear (tinnitus)
• Dizziness or a spinning sensation (vertigo)
• Trouble understanding where sounds are coming from

Symptoms in children

• Not turning or responding when called
• Turning the same ear towards sounds
• Complaining that an ear feels plugged or 'funny'
• Speaking more loudly than usual
• Balance problems while playing or walking
• Falling behind at school because of difficulty hearing

Symptoms in older adults

• Suddenly finding one ear much harder to hear than the other
• Difficulty following conversations, even in quiet settings
• Ringing in the ear that disrupts sleep
• Dizziness or unsteadiness when walking
• Withdrawing from social events due to hearing difficulties

Causes

Main causes

• Viral infections that affect the inner ear, such as certain cold or flu viruses
• Problems with blood flow to the inner ear
• Autoimmune conditions, where the body's immune system attacks the inner ear by mistake
• A tear in the membranes of the inner ear (perilymph fistula) due to pressure changes
• Rarely, a benign tumor on the nerve that connects the ear to the brain (acoustic neuroma)
• Certain medicines that can harm the ear (ototoxic medicines)
• In many cases, the exact cause is never found — doctors call this 'idiopathic' sudden hearing loss

Risk factors

• Being between 40 and 60 years old
• Having a recent viral illness
• Having an autoimmune condition such as rheumatoid arthritis or lupus
• Having diabetes or high blood pressure
• Smoking
• High levels of stress
• A stronger family history of hearing problems

When to see a doctor

See a doctor urgently if:

• Any sudden hearing loss — even if mild — should be checked the same day
• Hearing loss that came on in a few hours or up to 3 days
• Hearing loss with ringing, dizziness, or a feeling of fullness in the ear

Book a routine appointment if:

• Hearing loss that came on slowly over several weeks or months
• A persistent feeling of one ear being blocked that does not clear on its own

Diagnosis

A doctor will ask about your symptoms, recent illnesses, and medicines, and then look inside your ears with a special tool called an otoscope. The most important test is a formal hearing test (audiometry) to measure how well you hear different sounds. Depending on the results, you may be referred to an ear, nose, and throat (ENT) specialist.

Tests that may be done

• Audiometry — a painless hearing test where you wear headphones and respond to tones and words
• Tuning fork tests — the doctor uses small metal instruments to check how sound travels through your ears
• Otoscopy — an examination of the ear canal and eardrum
• Blood tests — to look for infections, immune problems, or other underlying conditions
• MRI or CT scan — in some cases, these imaging tests are used to look at the inner ear and the hearing nerve

What to expect at your appointment

Your doctor will want to know exactly when the hearing loss started and whether it happened suddenly or over a few days. The hearing test is usually done within days and takes about 30 minutes. You may get results immediately or at a follow-up visit, where the doctor will explain them and agree on next steps with you.

Treatment

Treatment works best when started early — ideally as soon as possible after symptoms begin. Some people recover on their own without treatment, but prompt care can improve the chance of hearing coming back. The main approach is to reduce swelling in the inner ear and support the hearing nerve while it recovers.

Self-care at home

• Protect your ears from loud noise — use earplugs in loud environments
• Rest and prioritize good sleep while your ear recovers
• Avoid straining, heavy lifting, or blowing your nose forcefully
• Keep water out of the affected ear if your doctor advises this
• Use a hearing aid or assistive listening device if your doctor recommends one during recovery

Medical treatments

The most common treatment for sudden hearing loss is a course of anti-inflammatory medicines called corticosteroids. These reduce swelling in the inner ear and are usually given as tablets or as an injection into the middle ear. If an underlying infection or immune condition is found, that will also be treated. Your doctor will explain the benefits and risks of any treatment they recommend.

When is surgery considered?

Surgery is rarely needed. In rare cases where a tear in the inner ear membranes is found, a small patching operation may help. For people with severe and permanent hearing loss who do not recover, a device called a cochlear implant may be an option — this is a small electronic device that helps provide a sense of sound. This is decided on an individual basis with a specialist team.

Living with this condition

If your hearing does not fully return, give yourself time to adapt. Let family and friends know what would help you, such as facing you when they talk or speaking one at a time. Consider using captions, a hearing aid, or a loop system in public places. Small adjustments can make a big difference to daily life.

Lifestyle tips

• Use captions or subtitles on television and online videos
• Sit facing the person you are talking with so you can read their facial expressions
• Choose quieter venues for meals or gatherings
• Carry earplugs with you for unexpected loud environments
• Try a vibrating alarm clock or a flashing light doorbell at home
• Join a hearing loss support group, online or in person

Diet and exercise

There is no special diet to cure sudden hearing loss, but eating a well-balanced diet and staying physically active supports blood flow and overall health, which is good for your hearing system. Managing high blood pressure, diabetes, and stress with lifestyle changes may also help protect the hearing you have.

Mental health and emotional wellbeing

Losing hearing suddenly can be frightening and upsetting. It is normal to feel anxious, frustrated, or low. If these feelings last or worsen, talk to your doctor or healthcare team about getting support. If you are ever in crisis or have thoughts of harming yourself, please contact a mental health crisis line in your country right away — you deserve support.

Prevention

There is no proven way to prevent sudden hearing loss because it often comes without warning. However, protecting your ears from loud noise, managing long-term health conditions, avoiding unnecessary exposure to medicines that can damage hearing, and seeing a doctor promptly if you notice changes can all help protect your hearing.

Vaccines

Some sudden hearing loss is linked to infections. Staying up to date with recommended vaccinations, such as for flu and other preventable illnesses, may help reduce your risk of infections that can affect the ear.

Screening programmes

Routine hearing screening is not needed for everyone, but if you notice any change in your hearing — no matter how small — do not wait. A quick hearing test can tell you a lot.

Complications

If left untreated

• Permanent hearing loss in the affected ear
• Long-lasting tinnitus that can affect sleep and concentration
• Persistent dizziness or balance problems
• Feelings of isolation, anxiety, or depression

Long-term outlook

There is good reason for hope. Around half of people with sudden hearing loss recover most or all of their hearing, often within the first two weeks. People who get medical help early and who had milder hearing loss tend to have the best outcomes. Even when hearing does not fully recover, hearing aids and other support options can help you stay connected to the world around you.

Find support

External links open third-party websites. Ruqelo Health is not responsible for external content. Listing an organisation does not imply endorsement.