Glue Ear: What It Is, Why It Happens, and How It's Treated
Updated: 3 days ago
Medically reviewed by Dr. Baraa Alnahhal, MD · Last reviewed: October 2026
Quick Answer
Glue ear is a buildup of thick, glue-like fluid in the middle ear behind the eardrum. The main symptom is muffled hearing or hearing loss [3]. It is caused by inflammation from ear infections, allergies or colds and mainly affects children under 6. It often clears up on its own [1], while persistent cases may need ear tubes or nasal sprays.
What the research says
According to PubMed, the following sources describe the current evidence on glue ear (otitis media with effusion):
Guidelines favor watching and waiting first, and advise against routine medicines. A 2016 U.S. clinical practice guideline, built on 20 new systematic reviews and 49 randomized trials, strongly recommends watchful waiting for 3 months in children with glue ear who are not at risk. It strongly recommends against intranasal or systemic steroids, systemic antibiotics, and antihistamines or decongestants for glue ear. It advises a hearing test if fluid lasts 3 months or longer, and ear tubes when surgery is needed in a child under 4. (Rosenfeld et al., Otolaryngol Head Neck Surg, 2016) [1]
More breastfeeding is linked to fewer ear problems. A 2025 systematic review of 29 existing reviews and 145 primary studies found that more breastfeeding was associated with a reduced risk of otitis media, along with several other child health outcomes. The studies were observational and had risks of bias, so this shows an association rather than proof. (Patnode et al., Pediatrics, 2025) [2]
Study details are from PubMed abstracts.
What Is Glue Ear?
Glue ear is a specific medical condition where the middle ear, the air-filled space behind the eardrum, becomes filled with thick, sticky fluid. In the medical community, this is known as otitis media with effusion (OME) [1]. While the term "glue" sounds alarming, it simply refers to the consistency of the fluid, which can become so thick that it prevents the eardrum from vibrating properly.
This condition is exceptionally common in young children, particularly those under the age of six, because their ear anatomy is still developing. However, adults can also experience glue ear, often following a severe cold or a change in air pressure. While glue ear is typically not a permanent or serious threat to health, its impact on hearing can be significant if left unmanaged, potentially affecting a child's ability to communicate and learn [1] [3].
Term | Plain-Language Meaning |
Middle Ear | The space behind the eardrum that should normally be filled with air. |
Eustachian Tube | The narrow canal that connects the middle ear to the back of the throat to drain fluid. |
Effusion | A medical term for the buildup of fluid in a body cavity. |
Otoscope | A handheld tool used by doctors to look inside the ear canal. |
What Are the Symptoms of Glue Ear?
The most prominent symptom of glue ear is hearing loss. Because the fluid acts like a dampener on a drum, sound waves cannot pass through the eardrum efficiently, resulting in muffled or quiet sounds. Unlike a sharp ear infection, glue ear often doesn't cause intense pain, which can make it harder for parents to spot.
Behavioral Signs in Children
Since young children may not be able to explain that their hearing is muffled, they often show symptoms through their behavior. You should consult a pediatrician if you notice a child:
Behaving with unusual irritability, fussiness, or sleepiness.
Not responding when their name is called or when someone speaks to them [3].
Asking for people to repeat themselves or turning up the volume on electronics.
Talking unusually loudly or wanting to play alone more than usual.
Showing a lack of concentration or struggling to keep up in school [1].
In addition to hearing changes, some individuals may experience a persistent feeling of pressure or fullness in the ear, ringing (tinnitus), or mild balance difficulties.
What Causes Glue Ear?
Glue ear is primarily caused by inflammation that prevents the Eustachian tubes from draining fluid properly [3]. These tubes normally act as a drainage system for the middle ear; when they become blocked or narrowed, fluid gets trapped and thickens over time.
Common Causes and Triggers
Ear infections are the most frequent culprit, as the body's immune response creates inflammation in the ear canal. Other factors that can lead to this blockage include:
Allergies and Irritants: Exposure to pollen, dust, or cigarette smoke can trigger inflammation [3].
Upper Respiratory Infections: Common colds, the flu, or viral infections often spread inflammation to the ears [3].
Anatomy and Pressure: Enlarged adenoids, cleft palate, or sudden changes in air pressure (such as during flying or scuba diving) can interfere with drainage.
Other Conditions: GERD (acid reflux) or genetic conditions like Down syndrome may increase the risk of fluid buildup.
It is a common myth that getting water in the ear while swimming or having too much earwax causes glue ear; neither of these factors contributes to the internal fluid buildup behind the eardrum.
How Is Glue Ear Diagnosed and Treated?
A pediatrician can typically diagnose glue ear during a standard physical exam using an otoscope. This tool allows them to see the eardrum and look for signs of fluid or bubbles behind it [1]. In some cases, a specialist called an audiologist may perform a hearing test or a "tympanometry" test, which measures how well the eardrum moves [1].
Treatment Paths
The good news is that most cases of glue ear resolve on their own within three months without any medical intervention. Doctors often recommend a "watchful waiting" period to see if the fluid drains naturally [1].
Medications: If an infection is present, antibiotics may be prescribed. Steroid nasal sprays are sometimes used to reduce inflammation in the Eustachian tubes. Current guidelines advise against routine use of steroids, antibiotics, antihistamines, or decongestants for glue ear [1] when there is no active infection, so ask your doctor what is right for your child.
Surgery: If the fluid persists for more than three months or causes significant hearing loss, a minor surgery called a myringotomy may be performed. This involves making a tiny hole in the eardrum to drain the fluid and often includes placing a small ventilation tube (ear tube) to keep the ear clear [1].
Home Care: With a doctor's guidance, techniques like the Valsalva maneuver (gently blowing with a pinched nose) or using a nasal balloon can sometimes help open the tubes.
Comfort & Reassurance: If your child seems to be ignoring you or acting out, remember that they aren't doing it on purpose. They may simply be struggling to hear. Glue ear is a very manageable condition, and once the fluid is cleared, hearing usually returns to normal immediately.
Want More Clear Health Guides? Visit Rinnit.com for research-backed information on managing common childhood conditions and protecting your family's hearing health.
Frequently Asked Questions
Can glue ear cause permanent hearing loss?
While the hearing loss is usually temporary, if the fluid stays in the ear for a very long time without treatment, it can potentially lead to long-term damage.
Is glue ear contagious?
No. While the cold or infection that caused it might be contagious, the fluid buildup itself is not.
Can adults get glue ear?
Yes, though it is less common. In adults, it often follows a severe viral infection or a significant change in altitude.
Do ear candles help with glue ear?
No. You should never use ear candles. They are ineffective and can cause serious injuries like burns or eardrum damage.
Will my child need speech therapy?
If glue ear causes a significant hearing delay during a critical time for language development, a doctor might recommend a speech specialist to help the child catch up.
How long do ear tubes stay in?
Ear tubes are usually temporary and typically fall out on their own as the eardrum heals, usually within 6 to 18 months.
Can my child swim with glue ear?
Yes, but if they have ear tubes, you should consult your doctor about whether they need to wear earplugs while swimming.
Does breastfeeding help prevent glue ear?
Yes. Breast milk contains nutrients that help babies fight infections, and the mechanics of breastfeeding can help the Eustachian tubes function better.
Can allergies make glue ear worse?
Absolutely. Allergies cause inflammation that can block the drainage tubes in the ear, making it harder for fluid to clear.
Is glue ear painful?
Usually, it is not very painful. It feels more like a sense of pressure or "clogged" ears rather than the sharp pain of a typical ear infection.
How often should I clean my child's toys to prevent this?
Regularly sanitizing toys and teaching proper handwashing can reduce the spread of the colds and infections that lead to glue ear.
Can flying on an airplane cause glue ear?
The pressure changes during flight can trigger fluid buildup or make existing glue ear feel more uncomfortable.
What is a nasal balloon?
A nasal balloon is a small balloon that a child blows up through their nose, which can help force the Eustachian tubes to open and drain fluid.
Does earwax buildup look like glue ear?
No. Earwax is on the outside of the eardrum, while glue ear is fluid trapped on the inside. A doctor can easily tell the difference with an otoscope.
Can glue ear return after it clears?
Yes, especially in children who are prone to frequent colds or allergies.
Related Reading
Tympanometry: What It Is, How It's Done and What Tympanogram Results Mean explains the quick middle ear test that can point to this condition.
References
Rosenfeld RM, et al. Clinical Practice Guideline: Otitis Media with Effusion (Update). Otolaryngol Head Neck Surg. 2016;154(1 Suppl):S1-S41. PMID 26832942. https://doi.org/10.1177/0194599815623467
Patnode CD, et al. Breastfeeding and Health Outcomes for Infants and Children: A Systematic Review. Pediatrics. 2025;156(1). PMID 40240318. https://doi.org/10.1542/peds.2025-071516
Mayo Clinic Staff. Ear infection (middle ear) - Symptoms & causes. Mayo Clinic. April 23, 2025. https://www.mayoclinic.org/diseases-conditions/ear-infection/symptoms-causes/syc-20351616
Medical disclaimer
This article is for general educational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified healthcare provider with any questions you may have about a medical condition. Never disregard professional medical advice or delay seeking care because of something you have read here. If you think you may have a medical emergency, call your doctor or emergency services immediately.
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