What is Ear Pain?
Ear pain, medically known as otalgia, is pain perceived in or around the ear. It may be felt in a very specific area, such as:
- the outer ear or auricle,
- the external auditory canal,
- the eardrum,
- or the deeper structures of the ear,
or it may be experienced as a more generalized, poorly localized earache.
Ear pain is extremely common, especially in children. More than 80% of children experience at least one episode of ear pain or ear infection by the age of 5, with the highest frequency between 6 and 24 months of age.
Doctors classify ear pain into two broad categories:
- Primary ear pain, when the pain originates directly from the ear;
- Secondary or referred ear pain, when the source of pain is outside the ear, but the pain is perceived in the ear because of shared nerve pathways.
Primary otalgia is more common than referred otalgia and is often caused by ear infections. The most frequent causes of referred ear pain include temporomandibular joint (TMJ) disorders, dental disease, throat inflammation, and sinus disease.
In most patients, ear pain is not associated with a serious disease. However, certain symptoms, such as hearing loss, vertigo, ringing in the ear, discharge, facial weakness, or rapid unexplained weight loss, require careful medical assessment.
In many cases, the cause can be identified through:
- a detailed medical history,
- evaluation of associated signs and symptoms,
- and a physical examination, especially with an otoscope.
Imaging tests such as X-rays or CT scans are not usually required for uncomplicated ear pain, but they may be necessary when warning signs are present or when a serious condition is suspected.
Treatment depends entirely on the underlying cause. For example, if a bacterial infection is diagnosed, therapy may include antibiotics and pain-relieving medication.
Causes
Ear pain can arise from many different conditions. Most causes are not life-threatening and do not cause permanent hearing loss, but some require prompt treatment.
The first diagnostic distinction is between:
- primary otalgia, where the pain originates in the ear itself;
- secondary or referred otalgia, where pain originates from another anatomical structure but is perceived in the ear.
Primary ear pain is the most common form in both children and adults. Referred ear pain is more frequent in adults and relatively uncommon in children.
Primary otalgia can also be classified according to the part of the ear involved:
- external ear pain,
- middle ear pain.
External Ear: Primary Ear Pain
Many causes of external ear pain are visible even without special instruments because they involve the auricle or the external auditory canal. The external ear is the most exposed part of the ear and is therefore particularly vulnerable to infections, trauma, irritation, and environmental injury.
Common causes include:
Otitis Externa
Otitis externa is an infection or inflammation of the external ear canal. It is often called “swimmer’s ear” because excessive moisture increases the risk.
Most cases are caused by bacteria, especially:
- Pseudomonas aeruginosa,
- Staphylococcus aureus.
Typical symptoms include:
- ear pain that worsens when pulling the ear or pressing the tragus,
- itching,
- redness and swelling of the ear canal,
- ear discharge,
- muffled hearing if the canal is swollen or obstructed.
Ear Trauma and Hematoma
A direct blow to the ear can cause a hematoma, which is a collection of blood between the cartilage and overlying tissue. This type of injury is especially common in contact sports such as rugby, wrestling, martial arts, and boxing.
If not treated properly, an auricular hematoma can lead to deformity of the ear cartilage, sometimes called “cauliflower ear”.
Earwax Blockage
An earwax plug can cause:
- reduced hearing or hearing loss,
- a sensation of fullness,
- ringing,
- discomfort,
- sometimes pain.
Earwax is protective and normally moves outward naturally. Excessive cleaning with cotton swabs can push wax deeper into the canal and worsen impaction.
Foreign Body in the Ear
Small objects inserted into the external ear canal are more common in children. Examples include beads, small toy parts, seeds, paper fragments, or insects.
Symptoms may include pain, discharge, bleeding, or hearing reduction. Removal should be performed carefully by a healthcare professional to avoid damaging the ear canal or eardrum.
Herpes Zoster of the Ear
Herpes zoster is caused by reactivation of the chickenpox virus. When it affects the ear region, it can cause intense pain and vesicles on the auricle or inside the ear canal.
If associated with facial nerve paralysis, it is called Ramsay Hunt syndrome. This condition requires prompt medical evaluation because early antiviral therapy may improve outcomes.
Sunburn and Skin Inflammation
The external ear is often exposed to sunlight and may develop sunburn, especially in people with fair skin or during outdoor activities.
Contact dermatitis may also affect the external ear and can be triggered by:
- earrings,
- headphones,
- hearing aids,
- hair products,
- cosmetics,
- topical medications.
Symptoms often include itching, redness, scaling, burning, and pain.
Less Common but Important Causes
Less common causes of external ear pain include:
- Malignant otitis externa, a rare but potentially life-threatening complication of otitis externa in which infection spreads from the ear canal to the skull base, causing osteomyelitis. It mainly affects older adults with diabetes and immunocompromised patients. Pseudomonas is the most common causative organism.
- Auricular cellulitis, a bacterial infection of the skin and soft tissues of the ear.
- Perichondritis, inflammation or infection of the cartilage covering, often after trauma, piercing, or burns.
- Relapsing polychondritis, a rare autoimmune disease affecting cartilage in the ears, nose, airways, and joints.
- Tumors, including squamous cell carcinoma of the external ear or ear canal.
Middle Ear: Primary Ear Pain
The middle ear is an air-filled cavity behind the eardrum. It contains three tiny bones, the malleus, incus, and stapes, that transmit sound vibrations from the eardrum to the inner ear.
The most common causes of middle-ear-related ear pain include:
Otitis Media
Otitis media is an infection or inflammation of the middle ear. It is extremely common in children, and more than 80% have at least one episode during childhood.
Common bacterial causes include:
- Streptococcus pneumoniae,
- Haemophilus influenzae,
- Moraxella catarrhalis.
Otitis media often follows a viral upper respiratory infection, because inflammation blocks the Eustachian tube, preventing normal drainage and ventilation of the middle ear.
Symptoms may include:
- ear pain,
- fever,
- irritability in infants,
- reduced hearing,
- sensation of pressure or fullness,
- sometimes fluid discharge if the eardrum perforates.
Barotrauma
Barotrauma occurs when sudden changes in pressure affect the middle ear, commonly during:
- airplane descent,
- scuba diving,
- rapid altitude changes,
- hyperbaric chamber exposure.
When pressure cannot equalize through the Eustachian tube, the eardrum becomes stretched, causing pain and pressure. In severe cases, middle ear bleeding or eardrum rupture can occur.
Perforated Eardrum
A perforated eardrum may result from:
- ear trauma,
- very loud noises, such as explosions,
- barotrauma,
- insertion of objects into the ear canal,
- severe otitis media.
Symptoms may include sudden pain followed by relief, hearing loss, ringing, discharge, or bleeding. Most small perforations heal spontaneously, but some require specialist management.
Referred Ear Pain: Secondary Otalgia
Referred ear pain occurs when the ear itself is normal, but pain is perceived there because nerves supplying the ear also supply nearby structures in the head, neck, throat, jaw, and upper digestive tract.
Common causes include:
Temporomandibular Joint Disorder
Temporomandibular joint disorder involves inflammation, dysfunction, or abnormal movement of the joint between the jaw and skull.
It can cause:
- ear pain,
- jaw pain,
- clicking or popping when opening the mouth,
- pain while chewing,
- headaches,
- tenderness around the jaw muscles.
Ear pain from TMJ dysfunction often worsens with chewing or clenching the teeth.
Trigeminal Neuralgia
Trigeminal neuralgia causes brief, severe, electric shock-like pain in the face. Depending on the branch involved, pain may be perceived near the ear.
Triggers may include touching the face, chewing, brushing teeth, or speaking.
Dental Disease
Tooth pain is a frequent cause of referred ear pain, especially when molars are involved. Dental abscesses, cavities, impacted wisdom teeth, and gum disease may all cause pain felt in the ear.
Throat and Tonsil Inflammation
Tonsillitis and pharyngitis can cause ear pain through shared nerve pathways. This is especially common during swallowing.
Sinusitis
Sinusitis may cause pressure, facial pain, nasal congestion, and sometimes referred discomfort to the ears due to Eustachian tube dysfunction or shared innervation.
Parotitis
Parotitis is inflammation of the parotid salivary gland, located in front of and below the ear. Swelling and pain in this area can be mistaken for ear pain.
Oropharyngeal Cancer
Oropharyngeal carcinoma can sometimes present with referred ear pain, especially in adults with risk factors such as tobacco use, alcohol use, or HPV infection. Persistent unilateral ear pain with a normal ear examination should always be evaluated carefully.
Gastroesophageal Reflux
Gastroesophageal reflux disease can irritate the throat and upper airway, sometimes contributing to throat discomfort and referred ear pain.
Temporal Arteritis
Temporal arteritis, also called giant cell arteritis, is an inflammatory disease of medium and large arteries, typically affecting people over 50. It may cause headache, scalp tenderness, jaw pain while chewing, visual symptoms, and sometimes ear-region pain. It requires urgent diagnosis and treatment to prevent vision loss.
Risk Factors
Risk factors for ear pain vary depending on the underlying condition. Common risk factors include:
- Childhood, because children are more susceptible to middle ear infections due to the size and shape of the Eustachian tube. In children, the Eustachian tube is shorter, narrower, and more horizontal, making drainage more difficult and infections more likely.
- Excessive moisture, such as frequent swimming, pools, saunas, and humid environments, increasing the risk of otitis externa.
- Seasonal factors, because ear infections are more common in autumn and winter, often following viral respiratory infections.
- Aggressive ear cleaning, which can disrupt the protective earwax barrier and irritate the canal.
- Recent flu-like illness or cold, which can trigger Eustachian tube dysfunction and otitis media.
- Diabetes, especially for malignant otitis externa.
- Congenital or acquired immunodeficiency, which increases the risk of severe or atypical infections.
Symptoms
Ear pain may affect:
- only the right ear,
- only the left ear,
- or both ears.
It may be:
- constant,
- intermittent,
- sharp,
- throbbing,
- burning,
- pressure-like,
- worsened by chewing,
- worsened by touching or pulling the outer ear,
- worsened during swallowing,
- associated with hearing changes.
Common associated symptoms include:
- fever,
- redness, swelling, and warmth of the affected ear,
- itching,
- sensation of fullness or pressure,
- sore throat,
- sneezing,
- common cold,
- blood from the ear,
- muffled hearing,
- visible vesicles on the outer ear,
- redness or rash of the auricle,
- ear discharge,
- ringing in the ear,
- dizziness or balance problems.
Warning Symptoms
Seek prompt medical attention if ear pain is associated with:
- sudden or significant hearing loss,
- vertigo,
- ringing or buzzing in the ear,
- blood or pus discharge,
- facial weakness,
- severe headache,
- swelling behind the ear,
- high fever,
- persistent vomiting,
- recent head trauma,
- diabetes or immune suppression,
- unexplained weight loss,
- persistent one-sided ear pain with a normal ear exam.
These symptoms may indicate a more serious condition affecting the inner ear, skull base, nerve pathways, or head and neck structures.
Diagnosis
In most cases, the cause of ear pain can be determined through:
- careful history-taking,
- analysis of associated symptoms,
- physical examination,
- otoscopic examination.
An otoscope allows the doctor to inspect the external auditory canal and eardrum. This is often enough to diagnose common conditions such as otitis externa, otitis media, wax blockage, foreign body, or eardrum perforation.
What the Doctor Looks For
During the evaluation, the doctor may assess:
- whether the outer ear is swollen, red, or tender;
- whether pulling the ear worsens pain;
- whether the ear canal is inflamed or obstructed;
- whether the eardrum is red, bulging, retracted, perforated, or covered by fluid;
- whether there is discharge, wax, blood, or a foreign body;
- whether hearing is reduced;
- whether there are signs of throat, jaw, dental, sinus, or neck disease.
The presence of fever often suggests an infection, while its absence may point toward structural causes such as trauma, wax impaction, barotrauma, TMJ disorder, or referred pain.
For example:
- muffled hearing may suggest earwax blockage;
- pain plus visible vesicles on the outer ear or ear canal suggests herpes zoster;
- pain worsening with jaw movement may suggest TMJ dysfunction;
- persistent unilateral pain with normal ear findings may suggest referred pain and requires broader evaluation.
When Further Tests Are Needed
Most patients do not require imaging. However, additional investigations may be needed if warning signs are present or if symptoms persist despite appropriate treatment.
Possible tests include:
- ultrasound,
- X-ray,
- CT scan,
- MRI,
- hearing tests,
- culture of ear discharge,
- blood tests,
- biopsy.
Special attention is required in:
- older adults with diabetes,
- people with HIV or other immune compromise, including HIV-positive patients,
- children with congenital immunodeficiency,
- patients with persistent pain and normal otoscopy,
- patients with weight loss or suspected head and neck cancer.
These groups have a higher risk of complications, including malignant otitis externa, skull base infection, inner ear involvement, irreversible hearing loss, and tumors.
Treatment
Treatment depends on the cause. Because ear pain can arise from many different conditions, there is no single treatment suitable for all patients.
General Pain Relief
For mild to moderate ear pain, doctors may recommend pain relievers such as:
- paracetamol/acetaminophen,
- ibuprofen or other anti-inflammatory medication when appropriate.
In children, medication doses must be based on age and body weight, and aspirin should generally be avoided unless specifically prescribed.
Avoid Self-Treating With Ear Drops Before Diagnosis
It is generally better not to use ear drops without medical advice, especially before the ear has been examined. Drops may partially dissolve wax or alter the appearance of the canal, making evaluation more difficult. Some ear drops may also be unsafe if the eardrum is perforated.
Bacterial Ear Infection
When a bacterial ear infection is suspected, treatment may include:
- analgesics,
- topical antibiotic drops for selected external ear infections,
- oral antibiotics for selected middle ear infections or more severe cases.
One commonly used oral antibiotic is amoxicillin combined with clavulanic acid, when clinically indicated.
Not all ear infections require antibiotics. Many cases of acute otitis media, especially in older children with mild symptoms, may be managed with observation and pain relief according to local guidelines and the physician’s judgment.
Otitis Externa
Treatment often includes:
- careful cleaning of the canal by a clinician when needed,
- topical antibiotic or antiseptic ear drops,
- corticosteroid-containing drops to reduce inflammation in selected cases,
- keeping the ear dry,
- avoiding cotton swabs and earbuds during healing.
Malignant Otitis Externa
Suspected malignant otitis externa requires urgent ENT evaluation. Hospital admission and intravenous antibiotics are often necessary. Imaging may be used to assess skull base involvement.
Earwax Blockage
Earwax may be managed with:
- softening drops when appropriate,
- irrigation in selected patients,
- manual removal by a trained clinician,
- microsuction.
Irrigation should not be performed if there is a known or suspected eardrum perforation, ear surgery history, active infection, or certain anatomical conditions.
Foreign Body
A foreign body must be removed carefully using appropriate instruments. Attempts at home removal can push the object deeper or perforate the eardrum.
Eardrum Perforation
Many small perforations heal spontaneously. Patients are usually advised to keep the ear dry and avoid inserting anything into the canal.
Persistent or large perforations may require surgical repair, such as myringoplasty.
Referred Ear Pain
If the ear itself is normal, treatment targets the true cause:
- TMJ disorder may require jaw rest, dental assessment, physiotherapy, bite splints, or anti-inflammatory medication.
- Dental disease requires dental treatment.
- Tonsillitis or pharyngitis may require supportive care or antibiotics depending on cause.
- Sinusitis may require nasal saline, nasal corticosteroids, analgesics, or antibiotics in selected bacterial cases.
- Reflux-related symptoms may improve with dietary measures and acid-suppressing therapy.
- Suspected tumors require ENT evaluation and imaging or biopsy.
Sources and Bibliography
- Rugarli C., Medicina interna sistematica, 2000.
- Harrison, Principi di medicina interna, 18th ed., Milano, CEA Casa Editrice Ambrosiana, 2012.
- Merck Manual Professional Edition - Earache / Otalgia.
- American Academy of Otolaryngology–Head and Neck Surgery Foundation (AAO-HNSF) - Clinical Practice Guidelines on Otitis Media and Cerumen Impaction.
- NICE Clinical Knowledge Summaries - Otitis media, otitis externa, and earwax.
