How Do I Know If My Child Has an Ear Infection?

The most telling signs of an ear infection in a child are sudden ear pain, fussiness that gets worse when lying down, and trouble sleeping. In babies and toddlers who can’t tell you what hurts, you’ll often notice them tugging or pulling at one or both ears, crying more than usual, and refusing to eat. These symptoms typically appear during or just after a cold, which is the most common trigger.

Ear infections are one of the most frequent reasons parents bring young children to the pediatrician, and knowing what to look for can help you act quickly.

Signs in Babies and Toddlers

Young children can’t point to their ear and say it hurts, so you have to read their behavior. The National Institute on Deafness and Other Communication Disorders lists three key signs to watch for: tugging or pulling at the ears, unusual fussiness and crying, and trouble sleeping. These often overlap with teething or general crankiness, but the combination matters, especially if your child has had a cold or runny nose in the past few days.

Ear pain tends to get worse when a child is lying flat because the pressure in the middle ear increases in that position. If your toddler is fine during the day but screams at bedtime or wakes up repeatedly through the night, that pattern points toward an ear problem. You may also notice them turning away from food or a bottle. Sucking and chewing change the pressure inside the ear, making the pain worse with every swallow.

A fever often accompanies an ear infection, though not always. A temperature of 102.2°F (39°C) or higher alongside ear symptoms is a strong signal, especially in children six months and older. For babies under three months, any fever of 100.5°F (38°C) or above warrants an immediate call to your pediatrician regardless of the suspected cause.

Signs in Older Children

Once kids can talk, diagnosis gets easier. They’ll usually tell you their ear hurts, or they may describe a “full” or “plugged” feeling. Older children often complain that sounds seem muffled or that they can’t hear well out of one ear. This temporary hearing change happens because fluid builds up behind the eardrum, dampening sound vibrations.

Other signs to watch for include drainage or discharge from the ear, which can look yellow or white, and a general sense of being unwell with low energy. If your child suddenly has trouble hearing the TV at normal volume or keeps asking you to repeat things during or after a cold, fluid in the middle ear is the likely cause.

Why Children Get Ear Infections So Often

The anatomy of a child’s ear is essentially set up to trap fluid. The eustachian tube, a narrow channel connecting the middle ear to the back of the throat, is responsible for draining fluid and equalizing pressure. In adults, this tube angles downward at about 30 to 40 degrees, allowing fluid to drain easily by gravity. In young children, the tube sits nearly horizontal, tilted only about 10 degrees. It’s also shorter, narrower, and lined with thicker tissue that swells more readily during a cold.

On top of that, the muscles that actively open the tube to let fluid drain are less effective in children because of how the cartilage is shaped and attached. The tissue surrounding the tube also contains more lymphoid tissue (similar to tonsil tissue), which can swell and block drainage further. All of this means that when a child gets a cold, mucus and bacteria have a much easier path into the middle ear and a much harder time getting out. This is why ear infections peak between six months and two years of age and become far less common after age seven or eight, when the tube has grown longer and more angled.

Ear Infection vs. Swimmer’s Ear

These two conditions feel similar but happen in different parts of the ear and have different causes. A middle ear infection (otitis media) develops behind the eardrum, usually following a cold or upper respiratory virus. Swimmer’s ear (otitis externa) is an infection of the outer ear canal, typically caused by water that stays trapped in the ear after swimming or bathing.

There’s a simple way to tell them apart at home: gently tug on the outer ear. If that tug causes pain, it’s likely swimmer’s ear. Middle ear infections don’t usually hurt when you touch the outer ear because the problem is deeper inside. Swimmer’s ear also tends to cause visible redness and swelling in the ear canal itself, while a middle ear infection looks normal from the outside. Both can cause pain and muffled hearing, but middle ear infections are far more common in young children, especially during cold and flu season.

What Happens at the Doctor’s Office

A pediatrician diagnoses an ear infection by looking at the eardrum with an otoscope. A healthy eardrum is translucent, pearly gray, and moves freely when a small puff of air is directed at it. An infected eardrum looks red or cloudy and bulges outward because of fluid and pressure building behind it. That bulging is the single most important finding. If the eardrum isn’t bulging and moves normally, your child likely doesn’t have an active ear infection, even if they have ear pain from another cause like teething or a sore throat.

In some cases, the pressure behind the eardrum becomes so intense that the membrane ruptures on its own. This actually relieves the pain quickly, and you’ll notice fluid or pus draining from the ear. While that looks alarming, the eardrum typically heals on its own within a few days to weeks.

When Antibiotics Are Needed

Not every ear infection requires antibiotics. Many mild infections are caused by viruses and will resolve on their own. Current guidelines from the American Academy of Pediatrics support a “watchful waiting” approach for children 24 months and older with mild symptoms: monitoring for 48 to 72 hours before starting antibiotics, as long as symptoms aren’t worsening.

Antibiotics are typically recommended right away in certain situations:

  • Age: Children under six months almost always receive antibiotics immediately.
  • Severity: Moderate to severe symptoms lasting 48 hours or more, or a fever of 102.2°F (39°C) or higher, generally prompt treatment in children six months and older.
  • Both ears: Infections affecting both ears at once tend to be treated more aggressively, especially in younger children.

If your pediatrician recommends watching and waiting, they’ll ask you to come back or call if symptoms get worse or don’t improve within two to three days. A fever that goes away but returns after 48 hours on antibiotics is also a reason to contact your doctor, as it could mean the antibiotic isn’t working against that particular bacteria.

What Happens If Infections Go Untreated

Most ear infections clear up without complications, but repeated or untreated infections carry real risks. Fluid can linger in the middle ear for weeks after the pain and fever are gone, causing temporary hearing loss during a critical window for speech and language development. Research published in the International Journal of Pediatrics found that persistent, untreated ear infections are associated with delays in speech development, academic difficulties, and behavioral problems linked to hearing loss.

In rare cases, infection can spread to the bone behind the ear (a condition called mastoiditis), which causes swelling, redness, and tenderness behind the ear and requires urgent treatment. If your child develops swelling behind the ear, a stiff neck, severe ear pain, or a fever above 104°F (40°C), seek medical care immediately.

Recovery and Lingering Fluid

Pain and fever from an ear infection usually improve within two to three days, whether your child takes antibiotics or not. But the fluid behind the eardrum often sticks around much longer. It’s common for fluid to remain in the middle ear for weeks or even a few months after the infection has cleared. During this time, your child’s hearing may still be slightly muffled. This is normal and usually resolves on its own, but if fluid persists beyond three months or your child has recurring infections (three or more in six months), your pediatrician may discuss ear tubes, small devices placed in the eardrum to help fluid drain and prevent future buildup.