Ear infections typically announce themselves with a distinct combination of ear pain, muffled hearing, and a feeling of pressure or fullness deep inside the ear. These symptoms often appear suddenly, usually on the heels of a cold or upper respiratory infection. While you can’t definitively diagnose an ear infection at home, the pattern of symptoms is recognizable enough to know when something more than earwax or congestion is going on.
The Main Symptoms in Adults
Adults with a middle ear infection usually notice three things: pain or pressure inside the ear, difficulty hearing out of the affected ear, and sometimes fluid draining from the ear canal. The pain tends to be a steady, deep ache rather than a sharp surface-level sting. It often gets worse when you lie down, because that position increases pressure on the eardrum.
You might also notice a sensation of fullness, like your ear needs to pop but won’t. This happens because fluid builds up behind the eardrum in the middle ear space, which is normally filled with air. That trapped fluid is also why sounds seem muffled or distant on one side.
If you see discharge coming from your ear, pay attention to the color. Yellow, brown, or white drainage usually means the eardrum has ruptured under pressure, which actually tends to relieve the pain. Green discharge is a stronger signal of active infection. Foul-smelling drainage, sometimes described as a cheese or vinegar odor, also points toward infection and warrants a visit to a provider.
Signs in Babies and Young Children
Children under five get ear infections far more often than adults, and the challenge is that young kids can’t always articulate what hurts. If your child isn’t old enough to say “my ear hurts,” watch for these behavioral cues:
- Tugging or pulling at one or both ears
- Unusual fussiness, crying, or irritability
- Trouble sleeping or eating
- Not responding to quiet sounds the way they normally do
- Clumsiness or balance problems
- Fever
- Fluid draining from the ear
The fever threshold worth noting: a temperature of 102.2°F (39°C) or higher alongside ear symptoms suggests a more significant infection. For infants under three months, a fever of 100.4°F (38°C) or higher is the threshold that calls for prompt medical attention regardless of other symptoms.
A telltale difference between ear infections and other childhood fussiness is the lying-down test. Kids with middle ear infections tend to get noticeably worse when they lie flat, because the fluid pressure against the eardrum increases. If your child screams at bedtime but calms somewhat when upright, an ear infection is a strong possibility.
Middle Ear vs. Outer Ear Infections
Not all ear infections are the same, and telling the two main types apart helps you understand what you’re dealing with. A middle ear infection (otitis media) happens behind the eardrum, usually after a cold, and causes deep internal pressure and muffled hearing. An outer ear infection, often called swimmer’s ear, affects the ear canal itself and has a different feel.
The simplest way to tell them apart is the tug test. Gently pull on your earlobe or press on the small flap at the front of your ear canal. If that movement causes a sharp increase in pain, you likely have an outer ear infection. Middle ear infections don’t typically hurt more when you touch the outer ear. Outer ear infections also tend to make the ear canal look red or swollen and may cause itching before the pain sets in.
What a Doctor Actually Checks
A provider diagnoses ear infections by looking at the eardrum with a lighted instrument called an otoscope. A healthy eardrum is translucent and moves freely. An infected one looks red, bulging, or cloudy, and fluid may be visible behind it. Some providers use a pneumatic otoscope, which puffs a small burst of air at the eardrum to see how well it moves. A stiff eardrum that barely responds to the air puff is a reliable sign of fluid buildup.
Another test, called tympanometry, measures how the eardrum responds to changes in air pressure. It takes just a few seconds and helps confirm whether fluid is trapped in the middle ear, even when the visual exam is inconclusive.
You might be tempted to use a home otoscope or ear camera to look inside your own ear. These devices are widely available but genuinely difficult to use correctly. You can easily misinterpret what you see, push objects deeper into the canal, scrape the lining, or even damage the eardrum by inserting the tip too far. They’re not a substitute for a trained eye.
What Ear Discharge Tells You
The color and smell of any fluid coming from your ear provides useful clues. Clear, watery discharge alongside ear pain or fever can indicate either an infection or a ruptured eardrum. Yellow or white discharge typically signals that the eardrum has torn, allowing infected fluid to escape. Green discharge is a more direct sign of bacterial infection. Brown discharge with red streaks suggests an injury or possible rupture.
Any discharge that smells foul is worth getting checked. Normal earwax has a mild, slightly sweet scent. A strong odor resembling cheese, fish, or vinegar points toward infection or another condition that needs attention.
How Long Symptoms Typically Last
Ear infection symptoms usually come on within a day or two of a cold and peak in intensity over the first 24 to 48 hours. Many mild middle ear infections resolve on their own within a few days, which is why providers sometimes recommend a “watchful waiting” approach, particularly for older children and adults with mild symptoms. Pain and fever tend to improve first, though the fluid behind the eardrum can linger for weeks or even a couple of months after the infection itself clears.
That lingering fluid explains why hearing may stay slightly muffled even after you feel better. It doesn’t necessarily mean the infection is still active, but if hearing hasn’t returned to normal after several weeks, a follow-up visit can confirm whether the fluid has drained.
Symptoms That Signal Something More Serious
Most ear infections are straightforward and resolve without complications. But certain symptoms suggest the infection has spread or caused damage that needs prompt evaluation:
- Sudden, significant hearing loss in one or both ears
- Severe dizziness or vertigo, especially if it comes on rapidly or keeps recurring
- Pain or swelling behind the ear, which can indicate the infection has spread to the bone (a condition called mastoiditis)
- Weakness or drooping on one side of the face
- High fever that doesn’t respond to over-the-counter medication
- Active bleeding from the ear
- Symptoms that worsen after initially improving
These complications are uncommon, but they escalate quickly when they do occur. Swelling or redness behind the ear in a child with an ongoing ear infection is the one that catches many parents off guard, because it can develop within days and requires more aggressive treatment than the original infection.