Hearing tests 

Hearing tests are used to assess your or your child's ability to hear different sounds and to determine if there are any problems.

What are hearing tests? {#introduction}

Why are hearing tests needed?

What happens during a hearing test?

Hearing problems

How are hearing tests performed {#how-it-is-performed}

When should hearing tests be performed? {#when-it-should-be-done}

## What are hearing tests? {#introduction}

Hearing tests are used to assess your ability to hear different sounds and to determine if there are any problems.

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## Why are hearing tests needed?

Hearing tests are carried out for two main reasons:

-   as a routine part of a baby’s or young child’s developmental checks
-   to check the hearing of someone who is experiencing hearing problems or has a [hearing impairment](/health-library/symptoms/hearing-impairment)

It is important that hearing tests are carried out so that the right support and treatment can be provided.

Read more about why hearing tests are needed.

Hearing tests are carried out at regular intervals during childhood, starting with the new born hearing screening programme (NHSP) within a few weeks of birth.

Your child's hearing may also be checked during a general health review when they are a few years old and before they start school for the first time.

If at any point you are worried about your or your child's hearing, you can ask your doctor for a hearing test.

Read more about when hearing tests are needed.

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## What happens during a hearing test?

Although your doctor or practice nurse can examine your ears, you will usually be referred to a specialist for a hearing test.

A number of different tests are used to check how well the ears are functioning and their ability to detect different levels of sound.

Common hearing tests include:

-   automated otoacoustic emissions (AOAE) tests – a computer attached to an earpiece plays clicking noises and measures the response from the ear
-   automated auditory brainstem response (AABR) tests – sensors are placed on the head and neck to check the response of the nerves to sound played through headphones
-   pure tone audiometry tests – sounds of different volumes and frequencies are played and a button is pressed when they are heard
-   bone conduction tests – a vibrating sensor is placed behind the ear to test how well sound travels through the bones in the ear

The tests used generally differ between children and adults, but they are all completely painless.

The results of some of these tests are recorded on a graph called an audiogram, so that the type of hearing loss can be identified.

Read more about how hearing tests are carried out and [hearing and vision tests for children](/health-library/medical-exams/hearing-and-vision-tests-for-children/#how-is-it-performed).

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## Hearing problems

Your hearing may be affected if sounds don't reach the inner ear efficiently. This is known as conductive hearing loss. Conductive hearing loss can be caused by problems such as a blockage in your ear canal (such as from ear wax) or in the middle ear (for example, [glue ear](/health-library/conditions/glue-ear)). An infection of your outer ear ([otitis externa](/health-library/conditions/otitis-externa)) or middle ear ([otitis media](/health-library/conditions/otitis-media)) may also be responsible. Hearing loss of this type is often temporary and reversible.

If sounds reach the inner ear but are still not heard, the fault lies in the inner ear or, rarely, in the hearing nerve. This is called sensori-neural hearing loss. Inner ear hearing loss may occur for a number of reasons, most commonly as a result of age-related change. Inner ear hearing loss is nearly always permanent.

Hearing tests are used to determine the type of hearing loss that you have.




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## How are hearing tests performed {#how-it-is-performed}

A hearing test is usually carried out after your ears have been examined and you have been referred to a specialist.

### Examination

Your doctor or practice nurse will first ask about any symptoms you may be experiencing, such as:

-   pain or discharge (fluid)
-   [tinnitus](/health-library/conditions/tinnitus) – noise in one or both ears
-   [vertigo](/health-library/symptoms/vertigo) (dizziness)
-   [hearing loss](/health-library/symptoms/hearing-impairment)
-   previous, relevant medical problems

Your ear will be examined using an instrument called an auriscope, also known as an otoscope. An auriscope is a small hand-held torch with a magnifying glass which allows the doctor to see the eardrum and the passageway that leads to it from the outer ear. It can be used to look for:

-   discharge – fluid coming out of the ear
-   a bulging eardrum – indicating that there is infected fluid in the middle ear
-   a retracted eardrum – indicating uninfected fluid in the middle ear ([glue ear](/health-library/conditions/glue-ear))
-   [perforated eardrum](/health-library/conditions/perforated-eardrum) – a hole in the eardrum, with or without signs of infection
-   [ear wax](/health-library/conditions/earwax) or foreign bodies that might be blocking the ear

Your doctor may also carry out simple tests using their voice to help determine the extent of your hearing loss. If there are any concerns, you or your child may be referred to an ear, nose and throat (ENT) specialist for further tests.

### Hearing tests in children

A range of different techniques are used to detect hearing problems. Some hearing tests are only used for children, including:

-   automated otoacoustic emissions (AOAE) tests – a computer attached to a small earpiece plays quiet clicking noises and measures the response from your child's ear
-   automated auditory brainstem response (AABR) tests – sensors are placed on your child's head and neck to check the response of their nerves to sound played through headphones
-   play audiometry tests – sounds of different volumes and frequencies are played to your child and they carry out a simple task when they hear them

Read more about [how hearing and vision tests for children are carried out](/health-library/medical-exams/hearing-and-vision-tests-for-children/#how-is-it-performed).

However, some tests, such as pure tone audiometry, speech perception and tympanometry (see below) can be used to test adults and well as children.

### Hearing tests in adults

There are a number of different ways to test adult hearing. Some of these are briefly described below.

#### Pure tone audiometry

Pure tone audiometry (PTA) tests the hearing of both ears. During PTA, a machine called an audiometer is used to produce sounds at various volumes and frequencies (pitches). You listen to the sounds through headphones and respond when you hear them by pressing a button.

#### Speech perception

The speech perception test, also sometimes known as a speech discrimination test or speech audiometry, involves testing your ability to hear words without using any visual information. The words may be played through headphones or a speaker, or spoken by the tester.

Sometimes, you are asked to listen to words while there is a controlled level of background noise.

#### Tympanometry

The eardrum should allow as much sound as possible to pass into the middle ear. If sound is reflected back from the eardrum, hearing will be impaired.

During tympanometry, a small tube is placed at the entrance of your ear and air gently blown down it into the ear. The test can be used to confirm whether the ear is blocked, most commonly by fluid.

Whispered voice test

The whispered voice test is a very simple hearing test. It involves the tester blocking one of your ears and testing your hearing by whispering words at varying volumes. You will be asked to repeat the words out loud as you hear them.

Tuning fork tes

A tuning fork produces sound waves at a fixed pitch when it is gently tapped and can be used to test different aspects of your hearing.

The tester will tap the tuning fork on their elbow or knee to make it vibrate, before holding it at different places around your head.

This test can help determine if you have conductive hearing loss, which is hearing loss caused by sounds not being able to pass freely into the inner ear, or sensori-neural hearing loss where the inner ear or hearing nerve is not working properly.

Bone conduction test

A bone conduction test is often carried out as part of a routine pure tone audiometry (PTA) test in adults.

Bone conduction involves placing a vibrating probe against the mastoid bone behind the ear. It tests how well sounds transmitted through the bone are heard.

Bone conduction is a more sophisticated version of the tuning fork test, and when used together with PTA, it can help determine whether hearing loss comes from the outer and middle ear, the inner ear, or both.


## When should hearing tests be performed? {#when-it-should-be-done}

Hearing tests are carried out regularly, particularly during childhood, to identify any problems as soon as possible.

In the past, many children born with a [hearing impairment](/health-library/symptoms/hearing-impairment) were not diagnosed until they were 18 months or older. However, identifying hearing loss late can have a negative impact on a child's language development, social skills and self-confidence. If hearing problems are diagnosed early, appropriate support can be provided for the child and their family.

It is also important to identify hearing loss in adults early, as treatment is more likely to be effective the earlier problems are diagnosed.

### Later childhood tests

There will also be further opportunities to check your child’s hearing as they get older. For example:

-   a child may have their hearing checked as part of their general review when they are about two-and-a-half years old
-   all children have a hearing test when they are between four and five years old before they start school
-   your doctor can arrange for your child to have a hearing test at any age if you feel that their hearing is not right (see below)

The age at which routine tests or assessments are carried out may vary between different areas. Your doctor or health visitor should be able to advise you.

### Reporting problems to your doctor

If you think your child may have a hearing problem, take them to see your doctor as soon as possible. Hearing tests can be used at any time to help diagnose or rule out other health conditions. In some cases, hearing loss may be the cause of delayed speech and language development.

Many children who experience hearing problems turn out to have a very common and temporary condition called [glue ear](/health-library/conditions/glue-ear), in which mucus blocks the ear.

Less commonly, other explanations for a child apparently having hearing difficulties include behavioural problems such as [attention deficit hyperactivity disorder](/health-library/conditions/attention-deficit-hyperactivity-disorder) (ADHD).

### Adult hearing tests

Adults can also request a hearing test from their doctor if they are concered about their hearing.

Hearing loss in old age is a common and usually gradual process. It often begins with difficulty hearing other people clearly, particularly when there is a lot of background noise. At first you may not realise that you have a hearing impairment. Other members of your family may be the first ones to notice that you have a problem.

However, there are other reasons why adults might lose their hearing, such as ear infections or prolonged exposure to excessive noise.

You should visit your doctor if you experience hearing loss in one or both ears, or if you have:

-   [tinnitus](/health-library/conditions/tinnitus) – ringing or buzzing in your ears
-   [vertigo](/health-library/symptoms/vertigo) – dizziness or loss of balance
-   severe ear pain that lasts for more than 24 hours
-   discharge – fluid or blood coming out of the ear

You may also need to have a hearing test if you have a head injury, because it could damage your inner ear.

Older people with permanent hearing loss may benefit from having a hearing aid. If you have a hearing aid fitted, you will receive advice and support from your local audiology department, including advice about changing the battery, repairs and upgrades.

You are more likely to benefit from a hearing aid if your hearing loss is diagnosed early, so you should ask your doctor to arrange a test for you if you are at all concerned about your hearing.


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Article information

Hearing tests are used to assess your ability to hear different sounds and to determine if there are any problems.