The earliest signs of an ear infection are usually a feeling of fullness or pressure inside the ear, mild pain, and muffled hearing. These symptoms often appear suddenly, typically a few days after a cold or upper respiratory infection, and they can progress quickly from mild discomfort to significant pain within 24 to 48 hours.
Early Signs Before the Pain Gets Worse
Ear infections don’t always start with sharp pain. The first thing most people notice is a sense of pressure or stuffiness in one ear, similar to what you’d feel on an airplane. Sounds may seem slightly muffled on that side. You might also feel a faint itch deep inside the ear canal.
These early symptoms happen because a small tube connecting your middle ear to the back of your throat (called the eustachian tube) gets swollen or clogged, usually from congestion caused by a cold, allergies, or a sinus infection. When that tube can’t open and close properly, fluid gets trapped behind the eardrum. If bacteria or viruses start growing in that trapped fluid, you develop an infection. The progression from “my ear feels clogged” to “my ear really hurts” can happen in less than two days.
Symptoms of a Middle Ear Infection
A middle ear infection is the most common type, especially in children. In adults, symptoms come on fast and include:
- Ear pain or pressure that worsens when lying down
- Muffled hearing or difficulty hearing in the affected ear
- Fluid draining from the ear, which can happen if the eardrum tears from the pressure buildup
- Fever, though not everyone gets one
The pain tends to be deep and steady rather than sharp or stabbing. It often feels worse at night because lying flat makes it harder for the trapped fluid to drain. If you notice that ear discomfort gets significantly worse when you go to bed, that’s a strong signal pointing toward infection rather than simple congestion.
When It’s an Outer Ear Infection Instead
Not all ear infections happen behind the eardrum. Outer ear infections (sometimes called swimmer’s ear) affect the ear canal itself and feel noticeably different. The telltale sign is pain that gets worse when you pull on your outer ear or press the small flap of cartilage in front of the ear canal. A middle ear infection won’t respond to that kind of touch.
Outer ear infections typically start with itching inside the ear canal, followed by redness, increasing pain, and sometimes fluid or pus draining from the ear. You may feel like your ear canal is partially blocked by swelling. These infections are common after swimming or from using earbuds or cotton swabs that irritate the skin of the canal. If your main symptom is itchiness that’s getting progressively more painful, and touching the outside of your ear makes it worse, you’re likely dealing with an outer ear infection.
Signs in Babies and Young Children
Children under two or three can’t tell you their ear hurts, so you have to read their behavior. The National Institute on Deafness and Other Communication Disorders lists these signs to watch for:
- Tugging or pulling at one or both ears
- Unusual fussiness or crying, especially when lying down
- Trouble sleeping or waking more often than usual
- Fever, particularly in infants
- Problems with balance or clumsiness
- Not responding to quiet sounds the way they normally would
- Difficulty eating, since swallowing and chewing can change pressure in the ear and cause pain
Ear pulling alone doesn’t always mean an infection. Babies explore their ears for all kinds of reasons, including teething. But ear pulling combined with a fever, irritability, or recent cold symptoms is a much more reliable indicator.
How Doctors Confirm It
You can’t diagnose an ear infection at home with certainty. A doctor uses a small lighted instrument called an otoscope to look at the eardrum. The single most reliable sign of an active middle ear infection is a bulging eardrum. The 2013 guidelines from the American Academy of Pediatrics specifically identify moderate to severe bulging of the eardrum as the strongest diagnostic indicator. A doctor will also look for redness, fluid behind the eardrum, or new drainage from the ear.
This matters because many things can mimic an ear infection. Fluid trapped behind the eardrum without an active infection (called an effusion) causes pressure and muffled hearing but doesn’t need antibiotics. Jaw tension, sinus pressure, and even referred pain from a sore throat can all create ear pain that feels identical to an infection. If you’ve had symptoms for more than a day or two and they’re getting worse rather than better, having someone look at the eardrum is the only way to know for sure.
Symptoms That Need Prompt Attention
Most ear infections are uncomfortable but not dangerous. However, certain symptoms signal that you should be seen quickly rather than waiting it out. Thick, yellow, bloody, or foul-smelling discharge from the ear suggests either a ruptured eardrum or a more serious infection. Sudden hearing loss in one or both ears, a high fever, severe pain that stops abruptly (which can mean the eardrum has ruptured, relieving the pressure), swelling or redness around the ear, or symptoms that spread to include dizziness, stiff neck, or confusion all warrant urgent evaluation.
In children, a fever above 102°F alongside ear symptoms, or any ear symptoms in a baby under six months, should be evaluated the same day rather than taking a wait-and-see approach.