Ear tubes are typically recommended when a child (or less commonly, an adult) has persistent fluid behind the eardrum for three months or longer, or keeps getting ear infections despite treatment. The decision usually comes down to how much the problem is affecting hearing, speech development, or daily life. Here’s what doctors look for and what the process involves.
The Main Reasons Tubes Are Recommended
The American Academy of Otolaryngology published updated guidelines in 2022 that lay out four specific scenarios where ear tubes make sense for children.
The most common reason is fluid in both ears lasting three months or more, combined with documented hearing loss. Fluid behind the eardrum doesn’t always cause pain, so parents often don’t realize it’s there until a child starts having trouble hearing, falling behind in school, or showing balance problems. A hearing loss of 40 decibels or greater often pushes doctors toward recommending surgery, though how well a child is coping socially and academically can matter more than the hearing test alone.
The second scenario is fluid in one or both ears for three months or more that’s causing noticeable symptoms: balance issues, ear discomfort, behavioral problems, poor school performance, or reduced quality of life. Even without significant hearing loss on a test, these symptoms can justify tubes.
Recurrent ear infections are the third reason. The threshold is specific: three or more separate, well-documented infections in six months, or four or more in a year with at least one in the most recent six months. The child also needs to have fluid present at the time the doctor evaluates them for tubes.
Finally, children considered “at risk” for developmental delays who have fluid that’s likely to persist qualify for tubes sooner. A flat reading on a tympanogram (a test that measures eardrum movement) or fluid lasting three months supports this decision.
Signs That Fluid Is Building Up
Middle ear fluid without an active infection is surprisingly quiet. There’s usually no fever and no sharp pain. The most common complaint is hearing loss, though young children can’t always articulate that. Parents might notice a child turning the TV up louder, not responding to their name from across a room, or tugging at their ears frequently. Some children describe a feeling of fullness or blocked ears, and occasional popping sounds.
During an exam, the doctor uses a pneumatic otoscope to check how well the eardrum moves. Healthy eardrums bounce back and forth with a puff of air; a fluid-filled ear shows reduced or absent movement. Sometimes the doctor can see air bubbles, a visible fluid line, or a bluish or yellowish tint through the eardrum. A tympanogram that produces a flat line confirms the diagnosis. In some cases, structural changes to the eardrum itself, like a retraction pocket forming or early signs of erosion, push the doctor toward surgery more urgently.
What Happens During the Procedure
The surgery, called a myringotomy with tube insertion, is one of the most common childhood procedures. It typically takes about 10 to 15 minutes. The surgeon makes a tiny incision in the eardrum, suctions out the trapped fluid, and places a small tube in the opening to keep it ventilated.
Children usually receive general anesthesia through a breathing mask, not an IV or breathing tube. They breathe in an anesthetic gas, fall asleep quickly, and wake up shortly after the procedure ends. For children roughly five and older, some surgeons offer a topical numbing approach instead, applying an anesthetic solution directly to the eardrum. Adults almost always have the procedure done under local anesthesia in a clinic setting.
Short-Term vs. Long-Term Tubes
There are two basic categories of ear tubes, and your surgeon chooses based on how long ventilation is needed. Short-term tubes have flanges on both sides that hold them in the eardrum. Over 8 to 15 months, the skin of the eardrum naturally pushes the tube out on its own. This self-extrusion is the normal endpoint for most children getting tubes for the first time.
Long-term tubes (often called T-tubes) are missing the outer flange, which prevents that natural push-out process. They stay in place for 15 months to two years and are typically chosen when short-term tubes have already fallen out too early, or when a child has significant eardrum retraction or collapse that needs extended support. Research suggests the ideal duration for treating persistent middle ear fluid in children is 12 to 18 months. Tubes removed before 12 months show significantly higher rates of the fluid returning. Keeping them in longer than 18 months, however, increases the risk of infection and permanent eardrum perforation.
Risks and Complications
Ear tubes carry a low complication profile. A 10-year follow-up study of 164 ears found that permanent eardrum perforation occurred in only 0.6% of cases, meaning the vast majority of eardrums heal completely on their own once the tube falls out or is removed. Eardrum thinning occurred in 1.2% of ears.
The most common long-term finding is myringosclerosis, a whitish scarring or calcification of the eardrum, which appeared in 17.1% of ears. This sounds alarming, but it rarely affects hearing and typically requires no treatment. The most frequent short-term issue is ear drainage (otorrhea) through the tube, which is usually treated with antibiotic ear drops.
Water Exposure After Tubes
Whether children need earplugs for swimming and bathing is one of the most debated questions in pediatric ear care. A Cochrane review of the available evidence found that earplugs produced a small, statistically measurable reduction in drainage episodes: from about 1.2 episodes per year down to 0.84. That’s a difference of roughly one-third of an episode per year. Put another way, an average child would need to wear earplugs for 2.8 years to prevent a single episode of ear drainage.
Advice to avoid swimming or head immersion showed no measurable effect on infection rates at all. Many surgeons still recommend earplugs as a precaution, particularly for lake or pool water, but the evidence suggests that surface-level swimming and normal bathing are unlikely to cause problems for most children with tubes.
When Adults Need Tubes
Ear tubes aren’t just for children. Adults develop them for somewhat different reasons. Eustachian tube dysfunction, where the narrow passage connecting the middle ear to the back of the throat fails to open and close properly, is the most common cause. This leads to persistent negative pressure, fluid accumulation, or a retracted eardrum. Adults typically notice it as muffled hearing, a constant sense of fullness, tinnitus, or ear pain during pressure changes like flying or diving.
Some adults experience baro-challenge-induced dysfunction, meaning symptoms only appear during altitude or pressure changes. Others develop chronic fluid buildup following upper respiratory infections. In adults, persistent fluid in one ear warrants closer investigation, since unilateral fluid can occasionally signal something more serious in the area behind the nose. If eustachian tube dysfunction continues long-term, tubes may need to be replaced more than once, since the underlying dysfunction doesn’t always resolve on its own.
What Improvement Looks Like
Most parents notice a difference within days. Once the fluid is drained and the tube is in place, sound can reach the inner ear without obstruction. Studies on eardrum repair procedures show hearing improvement in about 90% of cases, with nearly 89% of those patients achieving hearing within 15 decibels of normal at one year. For children who had been struggling with muffled hearing for months, the change can be dramatic: better attention at school, improved speech clarity, and fewer behavioral issues related to frustration.
The tubes also reduce the severity and frequency of future ear infections. When infections do occur, they’re typically easier to treat because antibiotic drops can pass directly through the tube into the middle ear, avoiding the need for oral antibiotics. Parents often notice that what used to be a painful, fever-producing infection becomes a brief episode of painless drainage that clears quickly with drops.