The most reliable sign of an ear infection is pain in or around the ear, often accompanied by a feeling of fullness or pressure. In adults, the symptoms are usually straightforward: ear pain, muffled hearing, and sometimes fluid leaking from the ear. In babies and young children who can’t describe what they feel, the signs are behavioral, and knowing what to look for can save you days of guessing.
Symptoms in Adults
A middle ear infection in an adult typically produces three core symptoms: ear pain or pressure, trouble hearing clearly, and fluid drainage from the ear. The pain often starts during or shortly after a cold, sinus infection, or upper respiratory illness, because swelling in the nose and throat can block the small tube that drains the middle ear.
You might also notice a feeling of fullness, like your ear needs to pop but won’t. Some people develop a low-grade fever, though high fevers are less common in adults than in children. The hearing loss is usually mild and temporary, caused by fluid trapped behind the eardrum that prevents it from vibrating normally.
Signs in Babies and Toddlers
Young children get ear infections far more often than adults, and they can’t tell you what hurts. Johns Hopkins Medicine identifies several behavioral cues that point toward an ear infection:
- Tugging or pulling at the ear
- Unusual crying or irritability, especially when lying down
- Difficulty sleeping or waking up more than usual
- Fever, particularly in younger children
- Fluid draining from the ear
- Loss of balance or clumsiness
- Not responding to sounds they normally react to
A child who has been congested for several days and then becomes unusually fussy, especially at night, is a classic picture. Lying flat increases pressure on the middle ear, which is why bedtime and naps often become a battle during an ear infection. Loss of appetite is another clue, since swallowing and chewing can make ear pain worse.
Middle Ear Infection vs. Swimmer’s Ear
Not all ear pain comes from the same place, and the two most common types of ear infection feel different in ways you can test at home. A middle ear infection happens behind the eardrum, deep inside. Swimmer’s ear is an infection of the outer ear canal, the part you can see.
One simple check: gently tug on your outer ear or press on the small flap at the front of the ear canal. If that causes a sharp increase in pain, it’s likely swimmer’s ear. Middle ear infections don’t respond to external pressure this way because the infection is deeper. Swimmer’s ear also tends to cause visible redness and swelling at the ear opening, along with itching and discomfort that worsens over days. It’s often more painful than a middle ear infection but less likely to cause fever, balance problems, or hearing changes.
Middle ear infections produce a broader set of symptoms, especially in children: sleep disruption, fussiness, balance issues, and appetite changes. If you’re dealing with pain plus these systemic symptoms, a middle ear infection is the more likely cause.
How Doctors Confirm an Ear Infection
You can’t definitively diagnose a middle ear infection at home because the eardrum isn’t visible without a special tool. A doctor uses an otoscope to look at the eardrum and checks for bulging, redness, and fluid behind it. A healthy eardrum is translucent and slightly concave. An infected one looks swollen outward, red, and may have visible fluid behind it. In some cases, the doctor uses a small puff of air to see whether the eardrum moves normally. An eardrum that barely moves suggests fluid buildup, which is the hallmark of infection. This technique is 70% to 90% accurate at detecting middle ear fluid.
When the Eardrum Ruptures
Sometimes a middle ear infection causes enough pressure that the eardrum tears on its own. This sounds alarming, but it’s actually common and often brings immediate relief. The trapped fluid drains out, and the intense pressure drops. You’ll notice the pain suddenly eases, followed by fluid leaking from the ear. That fluid can be clear, yellowish pus, or slightly bloody.
A ruptured eardrum from an infection usually heals on its own within a few weeks. Hearing may be reduced while it heals, but permanent damage is rare from a single rupture.
Dizziness and Hearing Changes
Your middle and inner ear handle both hearing and balance, so an infection in this area can affect both systems. Mild unsteadiness is common during a middle ear infection because fluid disrupts the pressure signals your brain uses to maintain balance.
If dizziness becomes severe, with the room spinning, nausea, and difficulty walking in a straight line, the infection may have spread to the inner ear. This condition, called labyrinthitis, involves inflammation of the fluid-filled channels that control balance and hearing. It typically causes more dramatic vertigo than a standard middle ear infection, along with ringing in the ears and noticeable hearing loss. These symptoms usually resolve as the inflammation clears, but they warrant medical evaluation because treatment can speed recovery and protect hearing.
How Long Ear Infections Last
Most ear infections improve within the first couple of days and clear up within one to two weeks without antibiotics. The body’s immune system resolves the majority of cases on its own, which is why many doctors recommend a “watchful waiting” approach rather than prescribing antibiotics immediately.
Current guidelines suggest this wait-and-see period is appropriate for children 6 months to 2 years old if the pain is mild, affects only one ear, has lasted less than 48 hours, and the fever is below 102.2°F. For children 2 and older, the same approach applies for mild pain in one or both ears with the same fever threshold. During this period, over-the-counter pain relief manages symptoms while the body fights the infection.
Antibiotics become the better choice when symptoms are severe, when they affect both ears in a very young child, when fever is high, or when symptoms haven’t improved after two to three days of observation. Recurrent infections, defined as three or more in six months or four in a year, may also change the treatment approach.
Symptoms That Need Prompt Attention
Most ear infections are manageable at home in the short term, but certain symptoms signal that you should be seen sooner rather than later. High fever, severe pain that isn’t controlled with pain relievers, swelling or redness behind the ear, dizziness with nausea or difficulty walking, or sudden significant hearing loss all warrant a visit. In young children, pay particular attention to hearing changes, since even temporary hearing loss during critical language-development years can affect speech and learning if infections are frequent or prolonged.
Fluid that continues draining from the ear for more than a day or two, or drainage that becomes bloody or foul-smelling, also warrants evaluation. These signs can indicate a ruptured eardrum that may need monitoring or, in rare cases, a more serious complication of the infection spreading beyond the middle ear.