Skip to main content

Health condition

Glue ear in adults

Glue ear - fluid behind an intact eardrum - is common in children but always worth taking seriously in adults, where persistent one-sided fluid requires examination of the postnasal space before treatment.

Why trust this guide

  • 01

    Editorial team

    Written by our editorial team from the UK sources listed on each page.

  • 02

    Sourced from guidance

    Checked against current NHS and UK specialist society guidance at the time of review.

  • 03

    Current for 2026

    Reviewed on 2026-09-27 with the next review scheduled for 2027-09-27.

Key facts

The essentials at a glance.

The symptoms to recognise, when to seek help, which specialist to see, and what treatment usually involves.

  • Muffled hearing, fullness and popping after a cold or flight are typical

  • Most adult glue ear follows infection or Eustachian tube dysfunction and clears within weeks

  • Persistent one-sided glue ear requires nasopharyngoscopy to exclude a postnasal space lesion

  • Grommets or balloon Eustachian tuboplasty treat persistent cases

Understanding the condition

What it is and what happens next.

What causes it, how it is diagnosed, and the treatment routes available in the UK.

What it is and how it feels

In glue ear, the middle ear fills with thick fluid because the Eustachian tube fails to ventilate it, muffling hearing by around 20-30 decibels and creating fullness, popping and occasionally faint crackling. In adults it typically follows a heavy cold, sinusitis or flying; allergy and reflux contribute in some, and unlike in children it deserves a specific explanation - especially when only one ear is involved.

Diagnosis and treatment routes

Diagnosis is by otoscopy and tympanometry, which shows the flat trace of a fluid-filled middle ear, and in adults the postnasal space is inspected with a flexible nasoendoscope because a nasopharyngeal tumour, although uncommon, can present exactly this way. Most effusions clear with time, steroid nasal spray and autoinflation exercises; fluid persisting beyond around three months with hearing impact is treated with a grommet, with balloon dilation of the Eustachian tube an option for recurrent cases. In many parts of the UK, routine NHS referrals for this kind of problem currently take 20-45+ weeks, whereas an initial appointment with a private consultant is typically available within around two weeks.

Seeing a specialist

Who to see, and how quickly you can be seen.

The specialist for this condition is usually a consultant ENT surgeon. Your GP can refer you on the NHS, or you can arrange a private consultation directly.

A quiet reminder

This guide is for information, not medical advice.

Your GP knows your history and can tell you which parts apply to you. If in doubt, see them - and seek urgent care for any of the emergency symptoms described above.

Frequently asked

Common questions about Glue ear in adults.

Quick, plain-English answers to what people ask us most.

  • What is glue ear in adults?

    Glue ear, medically called otitis media with effusion, is a build-up of sticky fluid in the middle ear behind the eardrum, causing muffled hearing. It is much more common in children but does occur in adults, usually with an underlying cause. It is not usually painful but can be persistently bothersome.

  • What causes glue ear in adults?

    In adults, glue ear is often linked to blocked Eustachian tubes from sinus problems, allergies, or a cold, but persistent or one-sided glue ear can sometimes be caused by growths in the nasopharynx (the area behind the nose) blocking the tube opening. Smoking and chronic nasal congestion can also contribute. Because of the possibility of an underlying growth, adult glue ear, especially if one-sided, is investigated more thoroughly than in children.

  • What are the symptoms of glue ear?

    The main symptom is a feeling of blocked or muffled hearing in the affected ear, sometimes with a sensation of fullness or mild popping and crackling sounds. Some people notice their own voice sounds unusually loud in that ear. Pain is unusual unless there is an accompanying infection.

  • Is glue ear in adults serious?

    Glue ear itself is not dangerous, but because one-sided glue ear in an adult can occasionally be a sign of a growth blocking the Eustachian tube, it should always be properly assessed rather than assumed to be simple fluid build-up. Once serious causes are ruled out, glue ear is usually just an inconvenience affecting hearing quality. An ENT specialist can examine the back of the nose to check the tube opening if needed.

  • How is glue ear in adults treated?

    Treatment often starts with addressing any underlying cause, such as nasal allergy or sinus congestion, alongside decongestants or nasal steroid sprays. If fluid persists despite this, a small operation to insert a grommet (ventilation tube) into the eardrum can drain the fluid and restore hearing quickly. Investigation of the nasopharynx is usually recommended first, particularly for one-sided cases.

  • Can glue ear resolve on its own?

    Yes, glue ear related to a cold, sinus infection, or temporary allergy often clears on its own within a few weeks as the underlying cause settles. Persistent glue ear lasting more than a few months is less likely to resolve without treatment and is worth having assessed. An ENT review can determine whether watchful waiting or active treatment is the better option.

  • How long does glue ear usually last?

    Short-term glue ear linked to a cold typically clears within two to six weeks. If it persists beyond three months, active treatment such as a grommet is more likely to be recommended, since spontaneous resolution becomes less likely with time. Your ENT specialist will monitor hearing and eardrum appearance to guide the decision.

  • Grommets vs watchful waiting for adult glue ear — which is better?

    Watchful waiting is reasonable for glue ear that has recently developed and has an identifiable, treatable cause such as a cold or allergy. Grommets are usually recommended for persistent glue ear, especially if hearing loss is significant or affecting daily life, since they give immediate and reliable relief. The right choice depends on how long symptoms have lasted and how much they affect you.

  • When is surgery needed for glue ear in adults?

    Surgery is generally considered when glue ear has persisted for more than around three months, when hearing loss is significant, or when there is a need to directly inspect and biopsy the area behind the nose. A short day-case procedure to insert grommets is usually all that is required. Any suspicious finding in the nasopharynx would need separate specific investigation and treatment.

  • When should I see an ENT specialist about glue ear?

    See an ENT specialist if muffled hearing persists beyond a few weeks, is one-sided, or is accompanied by other symptoms such as nasal blockage, blood-stained discharge, or neck lumps. NHS ENT waiting times for non-urgent referrals can run into many weeks, whereas a private ENT consultation and examination can usually be arranged within about two weeks. Prompt assessment is particularly important for one-sided symptoms, to rule out other causes early.