Ear pain causes
Pro Research Analysisby 
Searched over 200M research papers
Primary Ear Pain Causes: Otitis Media, Otitis Externa, and Ear Pathologies
Ear pain, or otalgia, can be divided into primary and secondary types. Primary otalgia means the pain comes directly from problems within the ear itself. The most common causes of primary ear pain are otitis media (middle ear infection) and otitis externa (infection of the outer ear canal) 1346+1 MORE. Other primary causes include cerumen (earwax) impaction, foreign bodies in the ear (especially in children), and trauma to the ear 79. In these cases, examination of the ear usually reveals visible abnormalities.
Secondary Ear Pain Causes: Referred Otalgia from Non-Ear Sources
Secondary otalgia, or referred ear pain, happens when the pain originates from outside the ear but is felt in the ear due to the complex nerve supply. The most common sources of referred ear pain are temporomandibular joint (TMJ) dysfunction, dental infections or dental pain, pharyngitis (throat infection), tonsillitis, and cervical spine (neck) arthritis 1345+4 MORE. In adults, secondary otalgia is more common than primary otalgia 159.
Serious and Uncommon Causes: Malignancy and Systemic Diseases
While most causes of ear pain are benign, some serious conditions can present with otalgia. These include head and neck cancers, especially oropharyngeal and nasopharyngeal tumors, which may cause ear pain as an early symptom even when the ear appears normal 1810. Other rare but important causes include temporal arteritis, malignant otitis externa (a severe infection often seen in diabetics), and even myocardial infarction (heart attack) 110. Risk factors for a serious underlying cause include older age, smoking, alcohol use, diabetes, and persistent or severe symptoms 1610.
Diagnosis and Assessment: Importance of History and Examination
A careful history and physical examination are essential to determine the cause of ear pain. If the ear examination is normal, clinicians should look for problems in the teeth, jaw, throat, neck, and even consider systemic illnesses 1346+1 MORE. Imaging or specialist referral may be needed if the diagnosis is unclear or if there are risk factors for serious disease 1610.
Conclusion
Ear pain can result from a wide range of causes, both within and outside the ear. The most common primary causes are infections like otitis media and otitis externa, while secondary causes often involve dental, jaw, or throat problems. Serious conditions, including cancers and systemic diseases, must be considered, especially in high-risk patients or when symptoms persist. Careful evaluation is key to identifying the underlying cause and ensuring appropriate treatment 1345+5 MORE.
Sources and full results
Most relevant research papers on this topic