An infected ear typically announces itself with pain, a feeling of fullness or pressure, and some degree of hearing change. But the specific symptoms depend on which part of the ear is affected. Infections can develop in the outer ear canal, the middle ear (behind the eardrum), or, less commonly, the inner ear. Each type feels different, looks different, and calls for a different response.
Middle Ear Infection Symptoms
Middle ear infections are the most common type, especially in children. The hallmark symptom is a deep, throbbing pain inside the ear that often gets worse when lying down. You may also notice muffled hearing or a feeling of fullness, as if your ear is stuffed with cotton. That’s because fluid builds up behind the eardrum when the space becomes inflamed.
In adults, the signs are usually straightforward: ear pain, reduced hearing, and sometimes a low fever. In young children, it’s trickier. Kids may tug or pull at their ears, become unusually irritable, sleep restlessly, or refuse to eat. Some children develop vomiting or diarrhea with no obvious ear complaints at all, which is part of why middle ear infections are frequently missed early on.
Fever is common but not universal. A temperature under 102.2°F (39°C) with mild pain generally points to an infection that may resolve on its own. A fever at or above that threshold, especially with worsening pain, signals something that needs medical attention sooner.
Outer Ear Infection Symptoms
An outer ear infection, often called swimmer’s ear, affects the ear canal rather than the space behind the eardrum. The most telling sign is pain that gets significantly worse when you touch, tug, or wiggle the outer ear. That’s a quick way to distinguish it from a middle ear infection, where pulling on the ear doesn’t usually change the pain much.
Other symptoms include itching inside the ear canal (often the first thing you notice), redness or swelling of the canal, and a feeling that the ear is blocked. The pain can spread to the head, neck, or side of the face as the infection progresses. In more advanced cases, the ear canal may swell nearly shut, and you might see clear fluid or pus draining from the ear.
Outer ear infections tend to develop after water gets trapped in the ear canal, creating a warm, moist environment where bacteria thrive. They’re also common after cleaning your ears aggressively with cotton swabs or other objects that scratch the delicate canal lining.
Inner Ear Infection Symptoms
Inner ear infections are far less common, but their symptoms are dramatically different from the other two types. The defining feature is vertigo: a sensation that the room is spinning or whirling around you. This isn’t just mild dizziness or feeling off-balance. It’s intense enough to cause nausea and vomiting, and it can make standing or walking difficult.
You may also experience sudden hearing loss in one ear and ringing or buzzing (tinnitus). Because the inner ear controls both hearing and balance, an infection here disrupts both systems at once. The vertigo is typically the most distressing symptom and can last days to weeks. A small number of people end up with lasting tinnitus or some degree of permanent hearing change.
What Ear Discharge Tells You
Any fluid coming from your ear is worth paying attention to. A healthy ear doesn’t drain. If you see discharge, it usually means one of two things: the ear canal itself is infected and producing fluid, or the eardrum has ruptured and fluid from the middle ear is leaking out.
A ruptured eardrum typically produces a white, yellow, or slightly bloody discharge. You’ll often notice a sudden decrease in pain right before or as the drainage starts, because the pressure that was building behind the eardrum has been released. That moment of relief can be misleading. The infection still needs attention, and the eardrum needs time to heal.
Clear or watery drainage can accompany both outer ear infections and allergic reactions. Thick yellow or greenish discharge generally points to bacterial infection. Bloody drainage suggests either a ruptured eardrum or significant irritation of the canal lining.
How Doctors Confirm an Ear Infection
When you visit a doctor for suspected ear trouble, they’ll look inside your ear with an otoscope. What they’re looking for are changes to the eardrum’s appearance: a normal eardrum is translucent, pearly gray, and slightly concave. An infected middle ear pushes the eardrum outward, making it bulge. It also turns the membrane red and opaque rather than its usual see-through appearance.
Many doctors use a pneumatic otoscope, which delivers a small puff of air against the eardrum. A healthy eardrum flexes in response. If it barely moves, fluid is trapped behind it, confirming a middle ear infection. Current clinical guidelines state that a middle ear infection should not be diagnosed without evidence of this fluid buildup.
When Antibiotics Are and Aren’t Needed
Not every ear infection requires antibiotics. Many middle ear infections, particularly in older children and adults, clear up within a few days without them. Guidelines from the American Academy of Pediatrics recommend a period of watchful waiting for certain patients: those older than 23 months with infection in one or both ears, mild pain that responds to over-the-counter pain relievers, fever below 102.2°F, and symptoms lasting less than 48 hours. Children between 6 months and 24 months can also be watched if only one ear is involved.
During that waiting period, pain management is the priority. If symptoms worsen or don’t improve within two to three days, antibiotics are typically started. Outer ear infections, by contrast, are almost always treated with antibiotic ear drops rather than oral medication, since the infection is on the surface of the ear canal where drops can reach it directly.
Signs That Need Prompt Attention
Most ear infections are uncomfortable but not dangerous. Certain symptoms, however, warrant a same-day or urgent visit:
- Fever of 102.2°F (39°C) or higher
- Pus or bloody fluid draining from the ear
- Symptoms that worsen after two to three days rather than improving
- Noticeable hearing loss
- Swelling, redness, or tenderness of the bone behind the ear, which can indicate the infection is spreading
- Severe vertigo with vomiting, suggesting inner ear involvement
For infants under 3 months old, any fever of 100.4°F (38°C) or higher calls for immediate medical evaluation, regardless of whether an ear infection seems to be the cause.
Ear Infections in Children vs. Adults
Children get far more ear infections than adults, largely because of anatomy. The tube that connects the middle ear to the back of the throat is shorter and more horizontal in young children, making it easier for fluid and bacteria to reach the middle ear. As children grow and this tube lengthens and angles downward, infections become less frequent.
Adults who develop middle ear infections often have a preceding cold, sinus infection, or allergies that block normal drainage. The symptoms in adults tend to be more clearly localized to the ear, while children under two may show only behavioral changes like fussiness, poor sleep, or loss of appetite. If your child is tugging at one ear and running a fever after a recent cold, an ear infection is a strong possibility.