Ear tubes are typically recommended when fluid behind the eardrum persists for three months or longer with hearing difficulties, or when a child has three or more ear infections in six months (or four in twelve months). These are the two main paths to surgery, though the specific circumstances matter. Most children who get ear tubes are between 6 months and 3 years old, but the guidelines cover kids up to age 12, and adults sometimes need them too.
Persistent Fluid Behind the Eardrum
The most common reason for ear tubes is a condition called otitis media with effusion, where fluid collects behind the eardrum and stays there without an active infection. This fluid muffles sound, similar to hearing underwater. In many cases it clears on its own, which is why doctors typically wait and watch for three months before recommending surgery.
That three-month clock starts from when the fluid was first noticed or, if no one caught it initially, from the date it was officially diagnosed. Tubes should not be placed for a single episode lasting less than three months, since the fluid often resolves without intervention during that window.
After three months, the recommendation depends on what’s happening with your child’s hearing. If fluid is present in both ears and a hearing test confirms reduced hearing, tubes are strongly recommended. If hearing is normal but the child has other symptoms that seem connected to the fluid, such as balance problems, ear discomfort, behavioral issues, poor school performance, or a noticeable drop in quality of life, tubes may still be offered as an option.
Recurrent Ear Infections
The second major pathway is frequent acute ear infections. The clinical threshold is specific: three or more documented infections within a six-month period, or four or more within twelve months with at least one occurring in the most recent six months. These need to be separate, well-documented episodes, not just a lingering single infection.
There’s an important catch, though. Even if a child meets that infection count, tubes are only recommended if fluid is present in one or both ears at the time they’re being evaluated for surgery. If the ears are completely clear of fluid during the assessment, current guidelines advise against placing tubes, since the infections may be manageable through other means.
Children at Higher Risk for Developmental Delays
Some children qualify for tubes sooner or with a lower threshold because they’re already at increased risk for speech, language, or learning problems. This includes children with existing hearing loss unrelated to ear fluid, speech or language delays, autism spectrum disorder, cleft palate, Down syndrome or other craniofacial conditions, intellectual disability, blindness or uncorrectable vision problems, ADHD, or other developmental delays.
For these at-risk children, doctors may recommend tubes when fluid is present and likely to persist, even before the full three-month waiting period has passed, particularly if a hearing test shows a flat tympanogram (a sign that the eardrum isn’t vibrating normally because of trapped fluid). The reasoning is straightforward: these children are already working harder to develop language and learning skills, so even mild, temporary hearing loss can have an outsized impact.
Adenoid Removal as an Add-On
In some cases, removing the adenoids at the same time as placing tubes can reduce the chance of needing a second set of tubes later. Updated guidelines give doctors the option to combine the two procedures for children aged 4 and older, or for younger children whose adenoids are causing nasal obstruction or chronic adenoid infections. This isn’t routine for every child getting tubes, but it’s worth discussing if your child is older or has already had one set of tubes that didn’t fully solve the problem.
What About Adults?
Unlike the well-defined pediatric guidelines, there are no standardized criteria for ear tubes in adults. This can actually slow down referrals and delay treatment. Adults typically become candidates when they have chronic eustachian tube dysfunction that causes persistent fluid buildup, a retracted or weakened eardrum, or fluid in the middle ear or mastoid bone linked to infection.
The process for adults is longer. Doctors generally start with medical management and baseline hearing tests, then reassess after 3 to 12 months. If symptoms haven’t improved and follow-up testing confirms the problem persists, surgery becomes the next step.
What Tubes Do and How Long They Last
Ear tubes are tiny cylinders placed through a small opening in the eardrum. They ventilate the middle ear space, allowing trapped fluid to drain and air pressure to equalize. The procedure itself takes about 10 to 15 minutes under general anesthesia for children.
There are two basic types. Short-term tubes, the most commonly used, stay in place for about 8 to 15 months before the ear naturally pushes them out. Long-term tubes lack an outer flange, which prevents the body’s normal shedding process from dislodging them. These can remain for 15 months to two years or longer. Most children receive short-term tubes, which fall out on their own in roughly 9 to 18 months. The tiny hole in the eardrum usually closes on its own after the tube comes out.
Your child’s doctor will recommend a hearing test before surgery to establish a baseline, and likely schedule follow-up visits to monitor the tubes. In most cases, one set of tubes is enough, though some children need a second set if fluid or infections return after the first tubes fall out.