Symptoms A-Z

Swelling of One Ear Symptoms, Causes & Common Questions

Understand swelling of one ear symptoms, including 5 causes & common questions.

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5 Possible Swelling Of One Ear Causes

The list below shows results from the use of our quiz by Buoy users who experienced swelling of one ear. This list does not constitute medical advice and may not accurately represent what you have.

Swimmer's ear (otitis externa)

Swimmer's ear, or otitis externa, is an infection of the canal which runs from the eardrum to the opening of the ear.

It is caused by anything that introduces bacteria, fungus, or a virus into the canal. Water that stays inside the ear after swimming is a common cause, as are cotton swabs used for cleaning or earpieces that create irritation.

Most susceptible are children, because they have narrower ear canals that do not drain well.

Early symptoms include redness, itching, and discomfort inside the ear canal, sometimes with drainage of clear fluid.

Even mild symptoms should be treated because they can quickly get worse. The infection can spread and intensify, becoming very painful with increased drainage, swelling, fever, and loss of hearing.

Diagnosis is made through patient history and physical examination of the ear canal. Lab tests may be done on a sample of the discharge from the ear.

Treatment includes having a medical provider clean the ear canal of debris and discharge, and a prescription for antibiotic and/or steroid eardrops.

Rarity: Common

Top Symptoms: fever, ear canal pain, ear fullness/pressure, jaw pain, ear pain that gets worse when moving

Urgency: Primary care doctor

Cellulitis

Cellulitis is a bacterial infection of the deep layers of the skin. It can appear anywhere on the body but is most common on the feet, lower legs, and face.

The condition can develop if Staphylococcus bacteria enter broken skin through a cut, scrape, or existing skin infection such as impetigo or eczema.

Most susceptible are those with a weakened immune system, as from corticosteroids or chemotherapy, or with impaired circulation from diabetes or any vascular disease.

Symptoms arise somewhat gradually and include sore, reddened skin.

If not treated, the infection can become severe, form pus, and destroy the tissue around it. In rare cases, the infection can cause blood poisoning or meningitis.

Symptom of severe pain, fever, cold sweats, and fast heartbeat should be seen immediately by a medical provider.

Diagnosis is made through physical examination.

Treatment consists of antibiotics, keeping the wound clean, and sometimes surgery to remove any dead tissue. Cellulitis often recurs, so it is important to treat any underlying conditions and improve the immune system with rest and good nutrition.

Rarity: Uncommon

Top Symptoms: fever, chills, facial redness, swollen face, face pain

Symptoms that always occur with cellulitis: facial redness, area of skin redness

Urgency: Primary care doctor

Swelling Of One Ear Symptom Checker

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Lymph node inflammation behind the ear

There are lymph nodes behind the ear. Lymph nodes are where your immune cells live, and when they become enlarged, it could be from a nearby infection, immune response, or even backlog of blood.

Rarity: Common

Top Symptoms: pain behind the ear, swelling behind the ears

Symptoms that always occur with lymph node inflammation behind the ear: swelling behind the ears

Urgency: Primary care doctor

Relapsing polychondritis

Relapsing polychondritis is a disorder in which defects develop in cartilage and other tissues throughout the body, including the ears, nose, eyes, joints, and respiratory tract. It is considered a rare condition.

Symptoms vary widely by case, but you may experie...

Skin cyst

A cyst is a small sac or lump, filled with fluid, air, fat, or other material, that begins to grow somewhere in the body for no apparent reason. A skin cyst is one that forms just beneath the skin.

It's believed that skin cysts form around trapped keratin cells – the cells that form the relatively tough outer layer of the skin.

These cysts are not contagious.

Anyone can get a skin cyst, but they are most common in those who are over age 18, have acne, or have injured the skin.

Symptoms include the appearance of a small, rounded lump under the skin. Cysts are normally painless unless infected, when they will be reddened and sore and contain pus.

Diagnosis is made through physical examination. A small cyst can be left alone, though if it is unsightly or large enough to interfere with movement it can be removed in a simple procedure done in a doctor's office. An infected cyst must be treated so that the infection does not spread.

Rarity: Common

Top Symptoms: skin-colored armpit bump, marble sized armpit lump, small armpit lump

Symptoms that always occur with skin cyst: skin-colored armpit bump

Urgency: Wait and watch

Questions Your Doctor May Ask About Swelling Of One Ear

To diagnose this condition, your doctor would likely ask the following questions:

  • Any fever today or during the last week?
  • Is there anything coming from your ear(s)?
  • Do you have swelling behind your ears?
  • Do you use a hearing aid or wear earplugs?

The above questions are also covered by our A.I. Health Assistant.

If you've answered yes to one or more of these questions

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Swelling Of One Ear Symptom Checker Statistics

People who have experienced swelling of one ear have also experienced:

  • 18% Pain In One Ear Canal
  • 6% Outer Ear Pain
  • 5% Ear Canal Pain

People who have experienced swelling of one ear were most often matched with:

  • 33% Swimmer'S Ear (Otitis Externa)
  • 33% Cellulitis
  • 33% Lymph Node Inflammation Behind The Ear

People who have experienced swelling of one ear had symptoms persist for:

  • 50% Less than a week
  • 31% Less than a day
  • 8% Over a month

Source: Aggregated and anonymized results from visits to the Buoy AI health assistant (check it out by clicking on “Take Quiz”).

Swelling Of One Ear Symptom Checker

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Disclaimer: The article does not replace an evaluation by a physician. Information on this page is provided as an information resource only, and is not to be used or relied on for any diagnostic or treatment purposes.