Ear infections typically announce themselves with pain, a feeling of fullness or pressure deep inside the ear, and muffled hearing. These three symptoms together are the most reliable signs you can notice at home. But the specific pattern of symptoms varies depending on whether the infection is in your ear canal, your middle ear, or your inner ear, and whether the person affected is an adult or a young child who can’t describe what they’re feeling.
Middle Ear Infection Symptoms
A middle ear infection is the most common type, especially in children. It happens when fluid builds up behind the eardrum and becomes infected, usually following a cold or upper respiratory illness. The hallmark symptom is a deep, throbbing pain inside the ear that often gets worse when you lie down. You may also notice muffled hearing or a feeling that your ear is plugged. Some people run a fever, and mild dizziness or balance issues can occur, though that’s less common.
If pressure from the fluid builds enough to rupture the eardrum, you’ll typically feel a sudden sharp pain followed by relief, and thick yellow fluid may drain from the ear. A ruptured eardrum sounds alarming, but it usually heals on its own within a few weeks. That said, any fluid draining from the ear warrants a visit to your doctor to confirm what’s going on.
Outer Ear Infection Symptoms
An outer ear infection (sometimes called swimmer’s ear) affects the ear canal rather than the space behind the eardrum. The easiest way to tell it apart from a middle ear infection is the “tug test”: if gently pulling on your earlobe or pressing the small flap at the front of your ear canal causes a sharp increase in pain, the infection is most likely in the outer ear. Middle ear infections don’t usually hurt more when you touch the outer ear.
With an outer ear infection, you’ll also notice redness and swelling along the ear canal, itching that may have started before the pain did, and sometimes a discharge. The pain tends to be constant and can get surprisingly intense, making it uncomfortable to chew or sleep on that side.
Inner Ear Infection Symptoms
Inner ear infections are far less common but produce a very different set of symptoms. Instead of ear pain being the dominant feature, the main signs are sudden vertigo (a spinning sensation), nausea, difficulty with balance, and hearing loss or ringing in the affected ear. Blurred vision and trouble concentrating can also occur. These symptoms tend to come on abruptly and can be severe enough to make it hard to walk or stand. If you develop sudden vertigo along with hearing changes, contact your doctor promptly, as early treatment can improve outcomes.
Signs in Babies and Young Children
Children under two or three can’t tell you their ear hurts, so you have to watch their behavior. The most recognizable cue is tugging or pulling at one ear. Babies under one may hit the side of their head instead, since they have trouble pinpointing where the pain is coming from. Other behavioral signs to watch for:
- Increased fussiness or crying, especially when lying down, because the position shifts pressure in the middle ear and makes pain worse
- Trouble sleeping, for the same reason
- Not responding to sounds the way they normally would, which signals temporary hearing loss from fluid buildup
- Loss of balance or unusual clumsiness in toddlers who are walking
- Reduced appetite, because chewing and swallowing change the pressure in the ear and cause discomfort
Physical signs include fever (100°F or higher), and in some cases, thick yellow or bloody fluid draining from the ear. Some children also develop diarrhea or vomiting, because the virus causing the ear infection can simultaneously upset the stomach.
What Ear Drainage Tells You
Not all fluid from the ear means infection. Normal earwax can occasionally work its way out and look like discharge. It’s typically brownish and waxy rather than liquid. Infected drainage, by contrast, is usually yellow, white, or green pus, sometimes with a foul smell. If the drainage is blood-tinged, it often means the eardrum has ruptured from pressure.
Clear, watery fluid from the ear deserves attention. It can be a sign of eczema in the ear canal, but after a head injury, clear or blood-tinged fluid leaking from the ear is a medical emergency, as it may indicate a skull fracture allowing brain fluid to escape.
How Doctors Confirm It
You can strongly suspect an ear infection based on your symptoms, but a definitive diagnosis requires someone to look at your eardrum. Doctors use a handheld scope to check for specific visual signs. The most telling indicator of a middle ear infection is a bulging eardrum. A healthy eardrum is translucent and flat. An infected one appears swollen outward, often red or cloudy, sometimes with visible fluid behind it. In mild cases, the doctor looks for a combination of slight bulging with ear pain that started within the past 48 hours.
For outer ear infections, the diagnosis is more straightforward: visible redness and swelling in the canal, pain when the outer ear is manipulated, and sometimes discharge blocking the view of the eardrum altogether.
How Long Symptoms Last
Most middle ear infections improve within two to three days, whether or not antibiotics are used. If your symptoms haven’t started getting better within 48 to 72 hours, that’s generally the threshold for contacting your doctor or returning for a follow-up. Even after the pain and fever resolve, fluid behind the eardrum can linger for weeks or even months. During that time you may notice your hearing still feels slightly muffled or your ear feels full. This residual fluid typically clears on its own, but persistent cases may need monitoring.
Outer ear infections usually take about a week to clear with prescription ear drops, though pain often starts to ease within the first day or two of treatment. Inner ear infections can take several weeks to fully resolve, particularly the balance-related symptoms.
Warning Signs of Complications
Most ear infections resolve without serious problems, but certain symptoms indicate the infection may be spreading beyond the ear. The most important one to recognize is swelling, redness, or tenderness in the bone behind the ear. This suggests mastoiditis, an infection of the skull bone adjacent to the ear. Other red flags include a high fever that develops or worsens days into the illness, severe headache, confusion, double vision, facial drooping on the affected side, or an ear that appears to be sticking out farther than usual due to swelling behind it. These complications are uncommon, but they require urgent medical evaluation because untreated mastoiditis can lead to hearing loss or spread to the tissues surrounding the brain.