What an Ear Infection Is

Ear infections occur when the tissues in or around the ear become inflamed. This may affect:

  • The outer ear canal (often called otitis externa)
  • The middle ear behind the eardrum (often called otitis media)
  • The eardrum itself, which can become inflamed or pressured by fluid

These areas may become irritated by viruses, bacteria, water exposure, wax build-up or skin conditions affecting the ear.


Symptoms may include pain, itching, pressure, temporary hearing changes or discharge or flu-like illness, and most cases improve without treatment.

Bacterial Ear Infections

Most ear infections are linked to viral illnesses, congestion or irritation of the ear canal. A smaller number can be caused by bacteria, particularly when symptoms are more severe or fluid collects behind the eardrum.

Bacterial causes may include:

  • bacteria affecting the middle ear space
  • outer ear canal infections related to moisture or skin irritation

It is not possible to confirm a bacterial infection based on symptoms alone. A GP assesses factors such as:

  • previous episodes without antibiotics, even when bacterial organisms are present.
  • severity of ear pain
  • discharge
  • fever
  • appearance of the ear canal and eardrum
  • duration of symptoms

Some bacterial and viral organisms can be associated with ear symptoms. The table below lists a few examples that may be reported in clinical contexts. Symptoms alone cannot confirm the cause and results always need GP assessment.

Type Organism Notes
Bacterial Streptococcus pneumoniae A common organism associated with middle ear inflammation in some cases.
Bacterial Haemophilus influenzae Sometimes linked with ear symptoms following a respiratory infection.
Bacterial Pseudomonas aeruginosa More often associated with outer ear irritation, especially when the ear canal is frequently wet.
Viral Rhinovirus, RSV Common in upper respiratory infections that can be associated with ear pain or pressure.
Viral Influenza, seasonal coronaviruses May contribute to generalised cold or flu-like illness with ear discomfort.

Common Symptoms of an Ear Infection

You may experience:

  • Ear pain or discomfort
  • Feeling of pressure or blockage
  • Temporary hearing reduction
  • Discharge or fluid leaking from the ear
  • Itching or irritation in the outer ear canal
  • Fever (in some cases)
  • Irritability or disturbed sleep in children

Symptoms often follow a cold or nasal congestion.

Common Reasons to Have an Ear Infection Reviewed by a GP

Speak to a GP if you have:

  • Symptoms lasting more than 3 to 5 days
  • Worsening ear pain or pressure
  • Fluid or discharge from the ear
  • Hearing reduction that is not returning
  • Recurrent ear infections
  • Symptoms after recent swimming or water exposure
  • Ear symptoms associated with jaw pain or dental issues

A GP can examine the ear canal and eardrum, assess for inflammation and advise on next steps.

Symptoms suggesting simple ear inflammation (common)

  • Mild to moderate ear pain
  • Temporary hearing reduction
  • Discomfort after a cold
  • Itching of the outer ear canal

These symptoms usually improve gradually over time.

Symptoms that may need a GP review

  • Symptoms lasting more than a few days
  • Pain that is not improving with simple measures
  • Frequent or recurrent ear infections
  • Persistent crackling or popping sensations
  • Hearing not returning after the illness

A GP can guide you on treatment or further assessment if needed.

When Antibiotics May Be Considered

A GP may consider antibiotics in certain situations, usually based on:

  • severe or persistent symptoms
  • discharge from the ear canal
  • significantly inflamed eardrum on examination
  • symptoms lasting longer than expected
  • higher risk of complications
  • certain recurrent infection patterns

Most ear infections get better without antibiotics, and many are caused by viruses. A GP will advise if antibiotics are appropriate based on your symptoms and clinical findings.


Further Reading and Hub Links

Visit our Common Infections hub or browse more health topics in the AccessGP Knowledge Base.

If you would like to discuss ear symptoms, recurring infections or hearing concerns, you can book an online GP appointment with AccessGP.

Last reviewed by Dr Zamiel Hussain, GMC registered GP
Updated: 8 December 2025