Babies with ear infections typically show a combination of fussiness, trouble sleeping, fever, and ear tugging, though no single symptom confirms it on its own. Because babies can’t tell you their ear hurts, you have to read a cluster of behavioral and physical clues together. Here’s what to watch for and how to tell an ear infection apart from other common causes of baby fussiness.
Behavioral Signs to Watch For
The most reliable early clue is a change in your baby’s behavior, especially if it follows a cold or upper respiratory infection. Ear infections typically develop when fluid gets trapped behind the eardrum, creating pressure and pain. Your baby can’t point to the problem, but their behavior shifts in predictable ways:
- Increased fussiness or irritability, particularly when lying down (the position increases pressure on the infected ear)
- Rubbing or tugging at one or both ears
- Difficulty sleeping or waking more frequently at night
- Decreased appetite or trouble feeding, since sucking and swallowing changes pressure in the ear and can increase pain
- More crying than usual, especially during feedings or when laid flat for diaper changes
None of these behaviors alone means ear infection. A baby who is tugging their ear but otherwise happy and eating normally is less concerning than one who is tugging their ear, running a fever, and refusing to nurse.
Physical Symptoms That Point to Infection
Fever is one of the strongest physical indicators, especially in infants and younger children. A temperature of 100.4°F (38°C) or higher in a baby under 3 months old warrants a call to your pediatrician regardless of the suspected cause. In older babies, ear infections commonly produce fevers in the 100°F to 102°F range, though they can climb higher.
Fluid or pus draining from the ear is another clear signal. This happens when pressure from the infection causes the eardrum to rupture slightly, releasing the trapped fluid. It looks alarming, but the drainage actually relieves pain, and the eardrum typically heals on its own. The fluid may be yellowish, cloudy, or slightly bloody.
You may also notice balance problems or clumsiness in babies who are crawling or walking. The middle ear plays a role in balance, so an infection there can make your child seem unsteady or more prone to falling.
Ear Infection vs. Teething
This is one of the trickiest distinctions for parents because teething and ear infections share several symptoms: ear tugging, fussiness, and slight temperature increases. The key differences come down to fever and context.
Teething can make a baby feel warm, but it rarely pushes body temperature above 100°F. A true fever of 100.4°F or higher points toward infection, not teething. Researchers at the University of Utah Health note that any time there’s inflammation in the body, including from teething, body temperature can rise slightly, but a genuine fever means you should look for a different cause.
Babies also pull on their ears during teething because of referred pain from the jaw, or simply because they’ve discovered their ears and it feels soothing. The context matters: if the ear tugging came on after a cold, nasal congestion, or upper respiratory symptoms, an ear infection is more likely. If your baby is drooling heavily, chewing on everything, and has swollen gums with no cold symptoms, teething is the more probable explanation.
Why Babies Get Ear Infections So Easily
Babies and toddlers are far more prone to ear infections than adults because of simple anatomy. The tubes that connect the middle ear to the back of the throat (called eustachian tubes) are shorter, narrower, and more horizontal in young children. This makes it harder for fluid to drain out of the middle ear and easier for bacteria or viruses to travel up from the throat. As your child grows, these tubes lengthen and angle downward, which is why ear infections become less common after age 3 or so.
Most ear infections start after a cold or respiratory illness. The congestion and swelling block the eustachian tubes, fluid pools behind the eardrum, and bacteria multiply in that warm, stagnant environment. This is why you’ll often notice ear infection symptoms appearing a few days into a cold rather than on their own.
What Happens at the Doctor’s Office
Only a healthcare provider can confirm an ear infection. They use a small lighted instrument to look at your baby’s eardrum. A healthy eardrum is translucent and moves freely when air is puffed against it. An infected eardrum typically bulges outward, appears red, and doesn’t move normally because of fluid trapped behind it.
Not every ear infection needs antibiotics right away. For children between 6 and 23 months with an infection in only one ear, mild pain, and a temperature below 102.2°F, pediatricians may recommend a “watchful waiting” approach. This means observing your child for 2 to 3 days to give their immune system a chance to fight the infection. If symptoms worsen or don’t improve in that window, antibiotics are prescribed. Children under 6 months, or those with high fevers or severe symptoms, are more likely to receive antibiotics immediately.
When Symptoms Need Urgent Attention
Most ear infections resolve without complications, but certain signs call for a prompt visit or phone call. A fever of 102.2°F (39°C) or higher, pus or fluid draining from the ear, or symptoms that worsen after 2 to 3 days of watchful waiting all warrant medical attention. For babies under 3 months, any fever of 100.4°F or higher is a reason to call your pediatrician right away, regardless of what you think is causing it.
Swelling, redness, or tenderness in the bone behind your baby’s ear is a rare but serious sign. It can indicate the infection has spread to the bone (a condition called mastoiditis), which needs treatment quickly.
Reducing Your Baby’s Risk
You can’t prevent every ear infection, but several strategies meaningfully lower the odds. Breastfeeding exclusively for the first six months, and continuing for at least 12 months, provides antibodies that help fight the bacteria responsible for many ear infections. Keep your baby away from secondhand smoke, which irritates the eustachian tubes and increases infection risk.
Staying current on vaccinations matters too. The pneumococcal vaccine protects against one of the most common bacteria behind middle ear infections, and the annual flu vaccine helps prevent the respiratory illnesses that often trigger them. Regular hand washing, for you and for older siblings, cuts down on the colds that start the whole cycle.
What Repeated Infections Can Mean
A single ear infection rarely causes lasting problems. Hearing typically returns to normal once the fluid clears, which can take a few weeks even after the infection itself resolves. But repeated infections, or fluid that lingers in the middle ear for months, can affect hearing enough to delay speech and language development in toddlers. Even mild, temporary hearing loss during the ages when children are learning to talk can slow their progress.
If your child has three or more infections in six months, or four or more in a year, your pediatrician may discuss options to break the cycle. In some cases, small tubes are placed in the eardrums during a brief procedure to help fluid drain more effectively and prevent buildup. This is one of the most common childhood surgeries and typically reduces both the frequency and severity of future infections.