You can check for an ear infection at home by looking for a combination of telltale symptoms: ear pain, fever, trouble sleeping, and in young children, tugging at the ear or unusual fussiness. While only a healthcare provider can confirm a diagnosis by looking at the eardrum, knowing what to watch for helps you decide whether a visit is needed and how urgently.
Key Symptoms in Adults and Older Children
The most reliable sign of a middle ear infection is ear pain, often described as a deep, throbbing ache. It typically shows up during or just after a cold or upper respiratory illness, because the swelling blocks the tube that drains the middle ear. Along with pain, you may notice muffled hearing, a feeling of fullness or pressure in the ear, and fever. Some people also feel off-balance or slightly dizzy.
Fluid draining from the ear is another important clue. Thick yellow discharge usually means the eardrum has ruptured under pressure from trapped fluid. This often brings sudden pain relief, but it still warrants medical attention. If the drainage is white, yellow, or green and continues over days or weeks without much pain, that points to a chronic infection. Foul-smelling discharge can signal an abnormal cell growth in the middle ear called a cholesteatoma, which needs treatment. Clear or blood-stained fluid after a head injury is a medical emergency and requires immediate care.
Spotting an Ear Infection in Babies and Toddlers
Infants and toddlers can’t tell you their ear hurts, so you have to read behavioral cues. The National Institute on Deafness and Other Communication Disorders lists these signs to watch for:
- Tugging or pulling at one or both ears
- Fussiness, crying, or irritability that seems out of proportion
- Trouble sleeping, especially lying flat (which increases ear pressure)
- Fever, particularly in infants and younger children
- Fluid draining from the ear
- Clumsiness or balance problems
- Not responding to quiet sounds or seeming to have trouble hearing
A cranky baby who just had a cold and is now waking repeatedly at night is a classic pattern. Not every episode of ear tugging means infection, though. Teething babies tug their ears too. The combination of tugging with fever, sleep disruption, or recent cold symptoms is what makes an ear infection more likely.
The Tug Test: Middle Ear vs. Outer Ear
Two common types of ear infection feel different, and a simple physical check can help you tell them apart. A middle ear infection (otitis media) causes deep pain that doesn’t change when you touch the outer ear. Swimmer’s ear (otitis externa) is an infection of the ear canal itself, and it has a distinctive feature: pain that gets noticeably worse when you gently tug on the earlobe or press the small flap of cartilage (the tragus) at the front of the ear opening.
If pulling the outer ear or pressing the tragus triggers a sharp increase in pain, swimmer’s ear is the more likely culprit. This type of infection is common after swimming or in humid conditions and often causes visible redness and swelling around the ear canal entrance. Middle ear infections, by contrast, usually follow a cold and cause pressure-type pain deeper inside.
Using a Home Otoscope
Consumer otoscopes, including smartphone-attached models, let you look inside the ear canal. They won’t give you a clinical diagnosis, but they can help you see obvious redness, swelling, or fluid. If you decide to use one, Kaiser Permanente recommends these precautions:
Move the device slowly and gently. Stop immediately if it causes increased pain. To get a better view of the eardrum, use your free hand to gently pull the outer ear up and back, which straightens the ear canal. Never push the otoscope forward if it feels like something is blocking its path. There is a real risk of scraping the ear canal skin or damaging the eardrum if you insert it too far.
A healthy eardrum looks pearly gray or light pink and slightly translucent. During an active middle ear infection, the eardrum typically appears red, swollen, and bulging outward from fluid pressure behind it. You may also see the eardrum look cloudy or opaque, or notice visible fluid levels or bubbles behind it. These changes can range from mild bulging to severe, tense swelling. Keep in mind that a crying child’s eardrum can look red even without infection, so redness alone isn’t enough to confirm one.
What Fluid Without Infection Looks Like
Not every fluid buildup behind the eardrum is an active infection. A condition called otitis media with effusion happens when fluid collects in the middle ear but no bacteria or virus is actively causing infection. It does not produce fever, ear pain, or pus. The main symptom is muffled hearing or a feeling of fullness. This commonly lingers for weeks after a middle ear infection resolves, and it usually clears on its own. If you’re using a home otoscope, you might see fluid or bubbles behind the eardrum without the redness and bulging of an acute infection.
How Doctors Confirm the Diagnosis
A provider’s main tool is a pneumatic otoscope, which lets them look at the eardrum and deliver a small puff of air to see how it moves. A healthy eardrum flexes easily. One backed by trapped fluid barely moves or doesn’t move at all. When the eardrum shows no mobility at all, the accuracy for predicting fluid behind it is 100%. When it shows only decreased mobility, accuracy drops to about 69%.
Tympanometry is another test you may encounter, especially for children with recurring infections. You’ll feel a small probe placed at the ear opening that changes air pressure slightly while measuring how the eardrum responds. It takes seconds and doesn’t hurt. This test is highly accurate: a flat reading predicts fluid behind the eardrum with 100% accuracy in studies, while a normal reading correctly predicts the absence of fluid about 70% of the time. The two methods agree on diagnosis 80% to 100% of the time, so providers often use whichever is available.
For children, clinical guidelines define severe ear infection as any one of: fever at or above 102.2°F (39°C) in the past 48 hours, moderate to severe ear pain, ear pain lasting 48 hours or longer, or active drainage from a ruptured eardrum.
Temporary Hearing Changes
Muffled hearing during a middle ear infection is normal and almost always temporary. The fluid behind the eardrum dampens sound vibrations, making everything sound like you’re underwater. This typically resolves as the fluid drains, though it can take several weeks after the infection itself clears. In children, repeated infections with prolonged fluid buildup can temporarily affect speech development and learning, which is one reason providers monitor recurring infections closely.
Signs That Need Prompt Attention
Most ear infections are manageable, but certain symptoms signal something more serious. Seek care promptly for a fever of 102.2°F (39°C) or higher, pus or fluid draining from the ear, symptoms that are getting worse rather than improving, middle ear infection symptoms lasting more than two to three days, or noticeable hearing loss. For infants under 3 months old, any fever of 100.4°F (38°C) or higher warrants immediate medical contact, regardless of other symptoms.