The most reliable sign of an ear infection is a persistent ache deep inside the ear, often alongside muffled hearing or fluid draining from the ear canal. These symptoms can look different depending on whether the infection is in the outer, middle, or inner ear, and they show up differently in adults than in young children who can’t describe what they’re feeling. Here’s how to sort through what you’re experiencing.
The Core Symptoms in Adults
A middle ear infection, the most common type, typically causes pain in one or both ears, muffled hearing, and sometimes a sore throat. You may run a fever. Some people notice a feeling of fullness or pressure, as if the ear needs to “pop” but won’t. Fluid can build up behind the eardrum without draining, which is what creates that plugged sensation and dampens your hearing.
If the infection worsens or the eardrum ruptures, you may see discharge leaking from the ear. Oddly, a ruptured eardrum often brings temporary pain relief because the pressure drops. The discharge itself gives you useful information: cloudy or pus-like fluid is the most common sign of a bacterial infection, while green or yellow drainage signals a more active bacterial process. Clear, watery fluid can mean a burst eardrum or swimmer’s ear. Normal earwax, by contrast, is not a sign of infection.
How to Tell Which Type You Have
There’s a quick way to narrow things down at home. Gently tug on your outer ear or press on the small flap of cartilage at the front of your ear canal (the tragus). If that produces sharp pain, you likely have an outer ear infection, sometimes called swimmer’s ear. This type lives in the ear canal itself, and the skin there becomes inflamed and tender to touch.
A middle ear infection sits deeper, behind the eardrum. Tugging on the outer ear won’t reproduce the pain. Instead, the ache feels like it’s coming from inside your head, and it often gets worse when you lie down because fluid shifts against the eardrum. Middle ear infections frequently follow a cold or upper respiratory infection, since swelling can block the narrow tube that normally drains the middle ear.
Inner ear infections are less common but more disruptive. The inner ear controls both hearing and balance, so the hallmark symptoms are vertigo, dizziness, and difficulty staying steady on your feet. These infections usually develop when a cold, flu, or untreated middle ear infection spreads inward. Left untreated, an inner ear infection can cause lasting damage to the balance system.
Spotting an Ear Infection in Babies and Toddlers
Young children can’t point to their ear and say it hurts, so you have to read their behavior. The most common signs are unexplained irritability and crying, especially during feedings. Sucking and swallowing create pressure changes in the middle ear, which makes feeding painful when fluid is trapped there. A baby who suddenly refuses the bottle or breast, or pulls away crying mid-feed, may be dealing with ear pain.
Trouble sleeping is another strong clue. Lying flat increases pressure on an inflamed eardrum, so a child who was sleeping well and suddenly can’t stay down, or who wakes up crying, is worth watching closely. Ear tugging gets a lot of attention as a sign, but on its own it’s not very reliable. Babies tug their ears for all sorts of reasons. It becomes more meaningful when combined with fever, fussiness, or sleep disruption.
What a Doctor Actually Looks For
Diagnosing an ear infection is harder than most people realize. Even trained clinicians get it wrong more often than you’d expect: studies have found diagnostic accuracy ranging from just 30% to 84% depending on the provider’s training and the patient’s age. The reason is that a red eardrum alone doesn’t confirm infection. A slightly red eardrum in a normal position with normal movement has only about a 7% chance of indicating an active middle ear infection.
What matters most is how the eardrum is positioned and whether it moves normally. Doctors use a tool called a pneumatic otoscope, which puffs a tiny burst of air at the eardrum. A healthy eardrum flexes back and forth easily. One that barely moves suggests fluid is trapped behind it. A bulging eardrum points toward an active infection, while a retracted or flat one suggests fluid buildup without acute infection.
Color, position, mobility, and whether there’s a perforation are the four things every exam should assess. The classic appearance of a confirmed acute infection is a bulging, yellow, cloudy eardrum with poor mobility, but that textbook presentation shows up in fewer than one in five cases. Most infections look subtler, which is why the physical exam matters more than a quick glance.
When Symptoms Need Immediate Attention
Most ear infections resolve on their own or with straightforward treatment, but certain signs call for urgent care. A fever of 102.2°F (39°C) or higher, severe pain behind the ear, pus or discharge coming from the ear canal, or any facial weakness or paralysis on the affected side all warrant a same-day visit. For infants under three months, any fever of 100.4°F (38°C) or above needs immediate evaluation regardless of other symptoms.
You should also see a provider if symptoms last longer than two to three days without improving, if hearing loss becomes noticeable, or if things are getting worse rather than better. Worsening symptoms can signal that a bacterial infection is progressing or that the infection is spreading beyond the middle ear.
Not Every Ear Infection Needs Antibiotics
Current guidelines take a more conservative approach than many people expect. For children two and older with a non-severe, one-sided infection, the recommended first step is 48 to 72 hours of observation, managing pain with over-the-counter pain relievers while watching whether the body clears the infection on its own. Many ear infections are viral and won’t respond to antibiotics at all.
Immediate antibiotic treatment is reserved for specific situations: children under six months, any case with severe symptoms (high fever, moderate to severe pain, pain lasting more than 48 hours, or drainage from a ruptured eardrum), and bilateral infections in children between six months and two years. For older children and adults with mild, one-sided symptoms, a “wait and see” window is both safe and often sufficient.
Some providers will write a “safety net” prescription you can fill if symptoms haven’t improved after two to three days. This approach cuts down on unnecessary antibiotic use while making sure you have treatment ready if you need it.
Dizziness as an Overlooked Sign
People often associate ear infections with pain and hearing changes, but dizziness can be just as telling. The inner ear houses both the hearing organ and the vestibular system that keeps you balanced. When infection reaches this area, it inflames the vestibular nerve or the labyrinth, the structure that coordinates balance and eye movement.
Labyrinthitis affects both hearing and balance, so you’ll typically notice hearing changes alongside vertigo. Vestibular neuritis affects primarily balance and eye movement, often without hearing loss. Both can develop after a cold or flu, and both cause a spinning sensation that may be severe enough to cause nausea. If you’re experiencing room-spinning dizziness alongside ear symptoms, an inner ear infection is a real possibility and worth getting checked, since untreated cases can lead to lasting balance problems.