An infected ear typically announces itself with pain, but the specific combination of symptoms depends on which part of the ear is affected. Infections can develop in the outer ear canal, the middle ear (behind the eardrum), or the inner ear, and each type produces a distinct pattern of signs you can learn to recognize.
Middle Ear Infection Symptoms
Middle ear infections are the most common type, especially in young children. They often show up shortly after a cold, sinus infection, or allergy flare-up. The hallmark symptoms are ear pain (ranging from mild to severe), fever, a plugged or full sensation in the ear, and muffled hearing. You might also notice that symptoms came on while you were already dealing with congestion or an upper respiratory illness, which is one of the clearest clues that this is an infection rather than something else.
In some cases, pressure from trapped fluid builds until the eardrum bursts. That sounds alarming, but it actually causes the pain to drop suddenly. You’ll notice thick, yellow fluid draining from the ear. The eardrum typically heals on its own afterward, and the drainage is a sign the pressure has been released rather than a sign of something more dangerous.
Signs in Babies and Toddlers
Children who can’t tell you their ear hurts will show you in other ways. The most recognizable signs are tugging or pulling at one or both ears, unusual fussiness and crying, and trouble sleeping. Irritability that seems out of proportion to anything else going on, particularly after a recent cold, is a strong signal. Fever often accompanies the infection, and in young children it can sometimes run high.
Outer Ear Infection (Swimmer’s Ear)
An outer ear infection develops in the ear canal itself, often after water gets trapped inside or after the skin lining the canal gets scratched or irritated. The telltale difference from a middle ear infection is this: pain that gets noticeably worse when you gently tug on your earlobe or press on the small flap of cartilage at the front of your ear. A middle ear infection won’t respond to that kind of pressure.
Other symptoms include itchiness inside the ear canal (often the first thing you notice, before pain sets in), a feeling of fullness, redness and swelling of the outer ear, muffled hearing, fever, and sometimes fluid draining from the ear. The lymph nodes around your ear or upper neck may swell and feel tender to the touch.
Inner Ear Infection Symptoms
Inner ear infections are less common but produce dramatically different symptoms. The inner ear houses the structures that control both hearing and balance, so when it becomes inflamed, the signature symptoms are vertigo (a spinning sensation, as if the room is rotating around you), sudden hearing loss in the affected ear, balance problems, nausea and vomiting, and ringing in the ear. These symptoms often come on suddenly and can be intense enough to make it difficult to stand or walk normally. If you’re experiencing spinning dizziness alongside hearing changes, an inner ear infection is a strong possibility.
What Ear Drainage Tells You
Fluid leaking from your ear provides useful clues about what’s going on. Thick yellow fluid typically means a middle ear infection has caused enough pressure to rupture the eardrum. White, yellow, or green fluid draining without much pain can point to a chronic middle ear infection. Fluid with a foul smell may indicate a cholesteatoma, an abnormal skin growth behind the eardrum that needs medical attention. Clear fluid or blood-stained drainage after a head injury is a medical emergency and unrelated to a standard infection.
Any persistent or unusual drainage is worth having evaluated, but yellow or green discharge alongside ear pain and fever is the classic infection combination.
Ear Infection vs. Earwax Buildup
Earwax impaction can mimic some infection symptoms, particularly the feeling of fullness and muffled hearing, which makes it easy to confuse the two. The key distinction is straightforward: earwax buildup does not cause fever or symptoms of an upper respiratory infection. If you’ve recently been sick with a cold or allergies and now have ear pain with fever, that pattern points strongly toward infection. If your ear feels blocked but you feel fine otherwise, with no fever or recent illness, impacted earwax is more likely.
What Happens at the Doctor’s Office
A doctor diagnoses an ear infection by looking at your eardrum with a lighted instrument called an otoscope. In a middle ear infection, the eardrum typically appears red or bulging outward from the pressure of trapped fluid behind it. In more severe cases, visible pus or fluid will be pressing against the membrane. The doctor may also use a small puff of air to check how well the eardrum moves; an infected ear with fluid buildup will show reduced movement compared to a healthy one.
For outer ear infections, the diagnosis is usually apparent from redness and swelling visible in the ear canal, combined with the characteristic pain when the outer ear is touched. Inner ear infections are diagnosed based on the combination of vertigo, hearing changes, and balance problems, sometimes with additional hearing tests.
When Symptoms Need Urgent Attention
Most ear infections, while painful, resolve with treatment or even on their own. But certain symptoms signal something more serious. High fever alongside severe ear pain warrants prompt care, especially in young children. Any weakness or drooping of facial muscles on the same side as the infected ear needs immediate evaluation, as this can indicate the infection is affecting nearby nerves. Sudden significant hearing loss, severe dizziness that prevents you from functioning, or symptoms that worsen rapidly after several days of treatment are also reasons to seek care quickly.