Labyrinthitis is an inner ear infection.

It causes a delicate structure deep inside your ear called the labyrinth to become inflamed, which affects your hearing and balance.

Symptoms of labyrinthitis

The most common symptoms of labyrinthitis are:

  • feeling that you or your surroundings are moving or spinning (vertigo)
  • feeling or being sick
  • some hearing loss

These symptoms can vary in severity, with some people feeling that they cannot stand upright.

Other symptoms of labyrinthitis may include:

  • mild headaches
  • ringing or humming in your ear(s) (tinnitus)
  • fluid or pus leaking out of your ear(s)
  • ear pain 
  • changes in vision, such as blurred vision or double vision

The symptoms of labyrinthitis can be quite severe during the first week, but usually get better after a few weeks.

In some cases, the symptoms can last longer and have a significant impact on your quality of life and ability to carry out everyday tasks.

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When to get medical help

If you have dizziness, vertigo, some hearing loss, or any other symtpoms of labyrinthitis, and they do not get better after a few days, or your symptoms are getting worse, see your GP or call NHS 111.

Symptoms of vertigo, nausea and sickness often improve gradually over a few days, although they can sometimes last for several weeks.

You may feel unsteady for a number of weeks or months. This usually improves over time and with treatment. Your hearing should return, although this may depend on the type of infection that caused the problem.

See your GP or call NHS 111 immediately if you have sudden hearing loss in one ear, with or without vertigo. It's important the cause is investigated.

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Diagnosing labyrinthitis

Labyrinthitis is diagnosed based on your symptoms, medical history and a physical examination.

Your GP may ask you to move your head or body, and your ears will be checked for signs of inflammation and infection.

You may also have some hearing tests, as labyrinthitis is more likely if you have hearing loss.

Your GP will also check your eyes. If they're flickering uncontrollably, it's usually a sign that your vestibular system, the body's balancing system, isn't working properly.

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Treating labyrinthitis

The symptoms of labyrinthitis usually pass within a few weeks.

Treatment involves drinking plenty of fluid to avoid becoming dehydrated, bed rest, and medication to help you cope better with the symptoms.

Labyrinthitis is usually caused by a viral infection, in which case antibiotics will not help. But you'll be offered antibiotics if your doctor thinks your infection is bacterial.

Contact your GP if your symptoms do not improve after 3 weeks. You may need to be referred to an ear, nose and throat (ENT) specialist.

A small number of people have symptoms that persist for several months or, in some cases, years. This requires a more intensive type of treatment called vestibular rehabilitation therapy (VRT), which is a specialised form of physiotherapy.

Read more about treating labyrinthitis.

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What causes labyrinthitis?

Labyrinthitis is caused by an infection in the labyrinth (the innermost part of the ear).

It contains the:

  • cochlea – a small spiral-shaped cavity that relays sounds to the brain and is responsible for hearing
  • vestibular system – a set of fluid-filled channels that contributes to your sense of balance

Labyrinthitis usually follows a viral infection, such as a cold or flu. The infection can spread from the chest, nose, mouth and airways to the inner ear.

Infections that affect the rest of the body, such as measlesmumps or glandular fever, are a less common cause of viral labyrinthitis.

In rare cases, labyrinthitis can be caused by a bacterial infection. Bacterial labyrinthitis is more likely to affect young children and can be serious.

Bacteria can enter the labyrinth if the thin membranes separating the middle ear from the inner ear are broken. This can happen if you have a middle ear infection or an infection of the brain lining (meningitis).

People with autoimmune conditions can also get labyrinthitis. Autoimmune conditions are where the immune system mistakenly attacks healthy tissue rather than fighting off infections.

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Complications of labyrinthitis

Bacterial labyrinthitis carries a higher risk of causing permanent hearing loss, particularly in children who have developed it as a complication of meningitis.

As a result of this increased risk, a hearing test is recommended after having bacterial labyrinthitis.

Severe hearing loss after bacterial labyrinthitis can sometimes be treated with a cochlear implant. This is a small hearing device fitted under the skin behind your ear during surgery.

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Vestibular neuronitis

Many people diagnosed with labyrinthitis only experience the balance symptoms without hearing loss.

This is known as vestibular neuronitis rather than labyrinthitis. However, both terms are often used to describe the same diagnosis.

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