The most reliable sign of an ear infection is persistent pain in one or both ears, often accompanied by muffled hearing and sometimes fever. But the specific symptoms depend on whether the infection is in your middle ear, your outer ear canal, or your child’s ear. Here’s how to tell what you’re dealing with.
Middle Ear Infection Symptoms
A middle ear infection (otitis media) is the most common type. It develops when fluid and bacteria get trapped behind the eardrum, usually following a cold or upper respiratory illness. The hallmark symptoms in adults are pain in one or both ears, muffled hearing, drainage from the ear, and sometimes a sore throat or fever. In some cases, your balance may be affected, though that’s less common.
Middle ear infections come in two forms, and they feel different. An acute infection hits suddenly: your ear becomes painful, you may spike a fever, and the ear feels full or congested. This is the classic ear infection most people picture. The second type, called effusion, happens when fluid lingers in the middle ear after an infection clears. You won’t necessarily feel pain, but your ear feels stuffed and your hearing stays dulled. Effusion can persist for months.
How Outer Ear Infections Feel Different
An outer ear infection, often called swimmer’s ear, affects the ear canal rather than the space behind the eardrum. The easiest way to distinguish it from a middle ear infection is a simple test: gently tug on your outer ear or press the small flap of cartilage in front of your ear canal (the tragus). If that causes a sharp spike in pain, it’s likely an outer ear infection. Middle ear infections don’t usually hurt more when you touch the outer ear.
Swimmer’s ear also tends to cause itching inside the ear canal, redness you can sometimes see at the opening, and swelling that may partially close off the canal. It’s common after swimming or after using cotton swabs that scratch the delicate skin inside.
Signs in Babies and Young Children
Babies can’t tell you their ear hurts, so parents often look for ear pulling or rubbing as a clue. But ear pulling by itself is not a reliable sign. According to guidance from Seattle Children’s Hospital, simple ear pulling without other symptoms like fever or increased crying is harmless and rarely indicates an infection. Children who actually have an ear infection act sick: they develop unexplained crying, become irritable, have trouble sleeping, and often run a fever. Those are the symptoms to watch for, not the tugging alone.
Rubbing or pulling at the ear is especially common in children under two or three, often as a self-soothing habit or because they’re teething. If your child is pulling at their ear but eating normally, sleeping well, and not feverish, an ear infection is unlikely.
What Ear Drainage Tells You
Fluid leaking from the ear can be alarming, but its color and consistency tell you a lot about what’s happening inside.
- Thick yellow fluid with sudden pain relief: This usually means an acute middle ear infection built up enough pressure to rupture the eardrum. The pain often drops dramatically right when the fluid appears, because the pressure is released.
- White, yellow, or green fluid without much pain: This pattern points to a chronic middle ear infection that has been draining for a while.
- Foul-smelling discharge: This can signal a cholesteatoma, an abnormal skin growth behind the eardrum that needs medical attention.
- Clear fluid: This may come from eczema in the ear canal or, rarely, from a more serious cause.
- Bloody or blood-tinged fluid: This can mean a foreign object in the ear (common in kids) or, in rare cases, a head injury.
What Happens at the Doctor’s Office
You can’t confirm a middle ear infection at home because it requires looking at the eardrum. A doctor uses an otoscope, a small lighted instrument, to check whether the eardrum is bulging outward, red, or has visible fluid behind it. In an acute infection, the eardrum pushes outward from trapped fluid and appears inflamed. With effusion, the doctor may see fluid levels or air bubbles behind a drum that doesn’t move normally when a puff of air is applied.
These are subtle visual findings. Consumer smartphone otoscopes exist, and researchers at Johns Hopkins have developed AI algorithms that can detect infections from ear images with accuracy comparable to a specialist. But for now, a clinical exam remains the standard, especially for children.
Not Every Ear Infection Needs Antibiotics
If your child is diagnosed with an ear infection, your doctor may recommend waiting two to three days before starting antibiotics. This approach, called watchful waiting, gives the immune system a chance to clear the infection on its own. It’s appropriate for children between 6 months and 23 months when only one ear is infected, and for children 2 and older with one or both ears affected, as long as symptoms have lasted less than two days, pain is mild, and fever stays below 102.2°F.
During that window, pain relief with over-the-counter options like ibuprofen or acetaminophen is the main treatment. Many ear infections, particularly those caused by viruses, resolve without antibiotics. If symptoms worsen or don’t improve after two to three days, antibiotics are typically started.
Warning Signs That Need Immediate Attention
Most ear infections are painful but not dangerous. A small number, however, can spread to the bone behind the ear, a condition called mastoiditis. Watch for these red flags: throbbing ear pain that keeps getting worse instead of better, swelling or redness behind the ear, one ear that appears to stick out more than the other, a soft or doughy feeling in the bone behind the ear, high fever, or facial drooping on one side.
Other signs that need urgent evaluation include severe dizziness or vertigo, confusion, double vision, or worsening hearing loss. Untreated mastoiditis can lead to serious complications including permanent hearing loss and, in rare cases, infections that spread to the tissues surrounding the brain. If you notice swelling behind the ear or facial weakness alongside ear infection symptoms, seek care right away.