Glue Ear in Children: What Parents Need to Know

Glue ear — fluid behind the eardrum causing muffled hearing — is the most common cause of hearing loss in children and often goes undetected because it is painless and children rarely complain about it. Most cases resolve on their own within three months, but persistent glue ear affecting speech, learning, or behaviour warrants specialist assessment and may require grommet insertion.

• Glue ear — thick fluid behind the eardrum — is the most common cause of hearing loss in children

• It is often missed because it is painless and children rarely complain about it

• Most cases resolve within three months, but persistent cases affecting speech or learning may need grommets

• This post helps parents recognise the signs and understand when to seek assessment

Glue ear occurs when thick fluid accumulates behind the eardrum, dampening its movement and causing muffled hearing. Unlike an ear infection, it is painless — which is why it so often goes unnoticed in children until it affects their speech or learning

Glue ear is one of the most common causes of hearing loss in children and one of the conditions I see most frequently in paediatric ENT practice. Despite being very common, it is often missed or misunderstood — partly because the hearing loss it causes tends to fluctuate, and partly because children are rarely able to articulate that they are not hearing properly. They simply adapt, often without parents realising anything is wrong.

This article explains what glue ear is, how to recognise it, when it needs treatment, and what the treatment options involve.

What Is Glue Ear?

Glue ear — the medical term is otitis media with effusion (OME) — is a condition in which thick, sticky fluid accumulates behind the eardrum in the middle ear space. Unlike acute otitis media (a middle ear infection), glue ear is not usually painful and does not cause fever. The fluid is not infected — it is simply present, and because it dampens the movement of the eardrum and the tiny bones of the middle ear, it causes a conductive hearing loss.

The fluid can vary in consistency from thin and watery to very thick and viscous — hence the name. In most cases, it resolves on its own over a period of weeks to months. In a significant minority of children, it persists and requires treatment.

Why Does It Happen?

The middle ear is connected to the back of the nose by the Eustachian tube. This tube equalises pressure in the middle ear and drains any fluid that accumulates there. In young children, the Eustachian tube is shorter, more horizontal, and less efficient than in adults — which is why children are much more prone to middle ear problems.

When the Eustachian tube does not function properly — due to adenoid enlargement, recurrent upper respiratory tract infections, allergies, or simply developmental immaturity — fluid can accumulate in the middle ear and fail to drain. Over time, this fluid thickens.

In Singapore's climate, where children are exposed to air conditioning, dust mite allergens, and frequent viral illnesses in school settings, Eustachian tube dysfunction and glue ear are particularly common.

How Do I Know If My Child Has Glue Ear?

This is often the most difficult part for parents. Children with glue ear rarely complain of ear pain — the condition is painless. The clues are more subtle:

Signs that may suggest glue ear:

• Turning up the volume on the television

• Frequently saying "what?" or asking for things to be repeated

• Not responding when called, particularly from another room

• Appearing inattentive or distracted — sometimes mistaken for behavioural issues

• Speaking loudly, as though unaware of their own volume

• Delayed speech or language development in younger children

• Poor performance at school, particularly in listening tasks

• Mouth breathing and snoring — adenoid enlargement often coexists

The hearing loss caused by glue ear is typically mild to moderate and fluctuates — it may appear to improve when the child has a cold and the Eustachian tube briefly opens, then worsen again. This fluctuation can make it easy to dismiss as temporary.

How Is Glue Ear Diagnosed?

Diagnosis is made on clinical examination. Otoscopy — looking into the ear with an otoscope — may reveal a dull, retracted eardrum with fluid visible behind it, though the appearance can be subtle.

Tympanometry is a simple, painless test that measures eardrum movement and middle ear pressure. A flat tympanogram — indicating no movement — is characteristic of glue ear. Formal hearing tests help quantify the degree of hearing loss.

A thorough assessment also includes examination of the nose and throat, particularly the adenoids, which frequently contribute to Eustachian tube dysfunction.

Does Glue Ear Always Need Treatment?

No. The majority of cases — particularly in younger children after a single episode — resolve spontaneously within three months. For this reason, watchful waiting is appropriate in the first instance when the hearing loss is mild and the child is coping well.

Treatment becomes appropriate when:

• Glue ear has been present for three months or longer

• The hearing loss is affecting speech, language, learning, or behaviour

• The child has recurrent episodes rather than a single prolonged one

• There is significant eardrum retraction that risks damaging the middle ear structures over time

• The child has an underlying condition — such as Down syndrome or a cleft palate — that makes spontaneous resolution less likely

What Are the Treatment Options?

Watchful Waiting With Monitoring

For mild, recent-onset glue ear, a period of observation with repeat assessment at three months is often the right starting point. Many cases resolve without intervention.

Autoinflation

A technique in which the child blows against resistance — using a special nasal balloon device — to encourage the Eustachian tube to open and allow middle ear fluid to drain. Evidence suggests it can modestly improve resolution rates and is safe and easy to do at home. It works best in children old enough to cooperate — typically from around four years old.

Treating Underlying Factors

Managing allergic rhinitis with nasal steroid sprays and antihistamines can improve Eustachian tube function and support resolution of glue ear, particularly in children with a significant allergy component.

Grommet Insertion

Grommets — also called ventilation tubes or tympanostomy tubes — are tiny tubes placed through a small opening in the eardrum under a brief general anaesthetic. They bypass the Eustachian tube and ventilate the middle ear directly, immediately resolving the hearing loss.

The procedure takes around fifteen minutes. Children typically recover within a few hours and can return to school the next day.

Grommets usually remain in place for six to twelve months before falling out naturally, by which time the Eustachian tube has often matured sufficiently to function normally. Some children require more than one set.

Grommets are generally recommended when:

• Glue ear has been present for three to four months or longer with persistent hearing loss

• The hearing loss is causing educational or developmental impact

• Watchful waiting has not led to resolution

Adenoidectomy

Removal of the adenoids is often performed at the same time as grommet insertion, particularly in children with significant adenoid enlargement, recurrent ear infections, or nasal obstruction. Adenoidectomy reduces the rate of recurrence of glue ear and may improve Eustachian tube function.

Does Glue Ear Affect Development?

This depends on the severity and duration of the hearing loss, and the age of the child. Hearing is most critical for speech and language development in the first few years of life — even a mild, fluctuating hearing loss during this period can have a cumulative effect on vocabulary, grammar, and listening skills.

In school-age children, glue ear can affect attention, behaviour, and academic performance — particularly in noisy classroom environments where listening conditions are already challenging.

This does not mean that every child with glue ear will have developmental consequences. Many children manage well. But it does mean that persistent glue ear in a young child should not be left unmonitored.

What to Expect at a Paediatric ENT Consultation

At consultation, I take a detailed history from parents about the child's hearing, speech, sleep, and behaviour, and examine the ears, nose, and throat. The assessment is calm and child-friendly — I am used to working with children from infancy through teenage years, and the examination is adapted to the child's age and level of cooperation.

Where a hearing test is indicated, this is arranged through the audiology team. Most children receive a clear explanation of findings and a management recommendation at the first visit.

Should I Be Worried?

Glue ear is a common, well-understood condition. The vast majority of children recover fully — either spontaneously or with straightforward treatment — without any lasting consequences. The key is ensuring that it is identified and monitored so that treatment can be offered if and when it is needed.

If you have concerns about your child's hearing, speech, or attentiveness, an ENT assessment is a sensible first step. Early assessment is always better than a prolonged wait.

Book a Paediatric ENT Assessment

Dr Vyas Prasad sees children for paediatric ENT assessments at Absolute ENT, Camden Medical Centre, 1 Orchard Boulevard, #09-08, Singapore. Contact the clinic by WhatsApp on +65 8060 8079 or by email at camden.mmc@gmail.com.