How to recognize an ear infection by what you feel and hear

An ear infection usually announces itself through ear pain, a feeling of fullness in the ear, or muffled hearing. The pain can range from a dull ache to sharp stabbing, and it often gets worse when you lie down or chew. You might also notice fluid draining from the ear, or hear a popping or crackling sound when you swallow or move your jaw. These symptoms typically develop over hours or a day or two, not gradually over weeks.

Not every ear infection feels the same. Some people experience only mild discomfort and reduced hearing. Others have severe pain that wakes them at night. A few have no ear pain at all but notice drainage or a persistent feeling that something is blocking the ear canal. The specific symptoms depend on where the infection is—in the outer ear canal, the middle ear space behind the eardrum, or the mastoid bone behind the ear.

Key Takeaways

  • Ear pain, fullness, muffled hearing, or fluid drainage are the main signs an infection is present, though not all infections cause pain.
  • Fever, especially in children, often accompanies an ear infection but is not required for one to exist.
  • Symptoms that last more than a few days, or that return after seeming to improve, warrant a check-up from a doctor or nurse practitioner.
  • Only a physical exam—looking inside the ear with an otoscope—can confirm an infection; you cannot diagnose one from symptoms alone.

Fever and other whole-body signs

Fever is common with ear infections, particularly in children under age three, but it is not always present. When fever does occur, it is usually low-grade—around 100 to 102°F—though some infections trigger higher temperatures. Adults are less likely to run a fever than children, even with the same infection.

Beyond fever, you might feel generally unwell: tired, achy, or without appetite. Children sometimes become fussy or pull at the affected ear repeatedly. Nausea or vomiting can happen, especially if the infection affects balance. These whole-body symptoms tend to fade as the infection clears, even if ear pain lingers for a few more days.

When drainage or discharge appears

Fluid leaking from the ear is a sign the eardrum has ruptured—either from pressure building behind it or from the infection itself. The discharge might be clear, yellowish, bloody, or pus-tinged, depending on what is causing the infection. A ruptured eardrum sounds alarming, but it often allows pressure to release and can actually reduce pain temporarily.

Drainage does not always mean the infection is worse. In fact, some infections that drain improve faster than those that do not, because the fluid is no longer trapped. However, drainage is a signal to see a doctor or nurse practitioner within a day or two, since a ruptured eardrum needs monitoring to ensure it heals properly and infection does not spread deeper.

Differences between outer ear and middle ear infections

An outer ear infection (swimmer's ear) causes pain that gets sharper when you tug on the outer ear or press on the small flap in front of the ear canal opening. The ear canal itself may feel itchy or tender. You might see redness or swelling in the canal, or notice a small amount of drainage. This type is usually caused by water trapped in the ear or minor cuts in the canal.

A middle ear infection causes pain deeper inside, behind the eardrum, and tugging on the outer ear does not make it worse. You are more likely to feel fullness, hear crackling or popping, or notice muffled hearing. Middle ear infections often follow a cold or sinus infection and are more common in children. Fever is more typical with middle ear infections than with outer ear infections.

How long symptoms typically last

Most ear infections begin to improve within three to five days, even without treatment. Pain often peaks on day two or three and then gradually lessens. Muffled hearing or a feeling of fullness can persist for a week or two after pain goes away, as fluid slowly drains from the middle ear space.

If symptoms are still severe after three days, or if they seem to improve and then return, that is the time to contact a doctor or nurse practitioner. Some infections need treatment to clear completely, and waiting too long can allow the infection to spread or the eardrum to rupture if it has not already. Recurring infections—three or more in six months—also warrant a medical evaluation to look for an underlying cause.

What a doctor or nurse practitioner will do

A healthcare provider uses an otoscope—a small handheld light with a magnifying lens—to look directly into the ear canal and at the eardrum. They are looking for redness, swelling, fluid behind the eardrum, or a bulging or perforated eardrum. This visual exam is the only way to confirm an infection is actually present. No blood test or imaging is needed for a straightforward ear infection.

If the diagnosis is unclear, or if the infection seems to involve the mastoid bone or deeper structures, a provider might order a CT scan. For most cases, though, the otoscope exam is enough. The provider will also ask about your symptoms, how long they have lasted, and whether you have had recent colds or sinus problems, since these often trigger ear infections.

When to seek care sooner rather than later

Contact a doctor or nurse practitioner the same day if you have severe pain, fever above 103°F, drainage from the ear, or hearing loss that is new or sudden. These signs can indicate the infection is spreading or the eardrum has ruptured. Also seek same-day care if you have symptoms of an ear infection plus stiffness in your neck, severe headache, or dizziness, since these can signal a more serious infection.

If symptoms are mild to moderate and have lasted only a day or two, you can usually wait a few days to see whether they improve on their own. However, if pain is keeping you awake, or if symptoms are not better after three days, schedule an appointment. For children under six months with any sign of ear infection, contact a provider the same day, since infections can progress quickly in very young infants.

Frequently Asked Questions

Can you have an ear infection without pain?

Yes. Some people notice only muffled hearing, a feeling of fullness, or drainage without significant pain. This is more common in adults than children. Drainage alone is still a reason to see a healthcare provider, since it indicates the eardrum may have ruptured.

Does an ear infection always cause fever?

No. Many ear infections, especially outer ear infections, occur without fever. Fever is more common in middle ear infections and in young children, but its absence does not rule out an infection. Pain, fullness, or drainage are enough reason to seek an evaluation.

How can you tell the difference between an ear infection and just water in your ear?

Water trapped in the ear usually causes a muffled feeling that improves within hours as the water drains, and there is no pain unless the ear canal is irritated. An ear infection causes pain that worsens over hours or days, often with fever or drainage. If muffled hearing or fullness lasts more than a few hours, see a provider.

Is it safe to wait and see if an ear infection goes away on its own?

Many mild to moderate ear infections improve within a few days without treatment. However, waiting longer than three days with significant pain, or waiting at all if you have fever above 103°F or sudden hearing loss, increases the risk of complications. When in doubt, a quick call to a nurse hotline can help you decide whether to wait or come in.

Can you catch an ear infection from someone else?

The bacteria or viruses that cause ear infections are contagious, but the infection itself is not. You can catch a cold or respiratory virus from someone and then develop an ear infection as a complication, but you cannot directly catch an ear infection the way you catch a cold.