Mild ear infections resolve with time or a short course of medication. Recurrent, persistent, or severe infections require the expertise of an ent specialist​. An accurate diagnosis leads to effective treatment, so learn how ENT specialists diagnose and treat ear infections.
Physical Exam
An evaluation typically begins with a detailed medical history and a general physical examination. The ent specialist will ask about the onset, duration, and frequency of symptoms such as ear pain, drainage, fever, pressure, dizziness, or changes in hearing. Information about recent colds, allergies, and previous ear procedures helps complete the clinical picture.
During the exam, the specialist inspects the outer ear for redness, swelling, or tenderness. Gentle pressure around the ear can help distinguish an outer ear infection (otitis externa) from a middle ear infection (otitis media). The physician may also check the neck for swollen lymph nodes and evaluate the throat and jaw, since conditions in these areas can cause pain that radiates to the ear.
Otoscopic Exam
The otoscope is one of the most important tools for diagnosing ear infections. This handheld instrument contains a light and a magnifying lens, which allows the specialist to view the ear canal and eardrum (tympanic membrane) in detail. Many ent specialists use pneumatic otoscopy, which delivers a gentle burst of air into the ear canal, to determine inner ear health.
A healthy eardrum appears pearly gray and translucent. An infected eardrum may look red, cloudy, or bulging due to fluid buildup behind it. The specialist will also look for perforations, scarring, or discharge and create a treatment plan accordingly.
Nasal Endoscopy
Because the ears, nose, and throat are closely connected, problems in the nasal passages often contribute to ear infections. The eustachian tube links the middle ear to the back of the nose and helps regulate pressure and drain fluid. When this tube becomes blocked, fluid can accumulate and create an environment where bacteria grow.
During a nasal endoscopy, the ENT specialist passes a thin tube with a camera through the nostril. The procedure is usually performed in the office with a topical anesthetic for comfort. It allows the physician to examine the eustachian tube opening and identify contributing factors such as enlarged adenoids, nasal polyps, chronic sinusitis, or allergic inflammation.
Hearing Evaluation
Ear infections, particularly those that recur or persist, can affect hearing. A hearing evaluation measures the extent of this impact and helps guide treatment decisions. Common assessments include:
- Pure-tone audiometry: this measures the softest sounds a patient can hear at different pitches
- Speech audiometry: this evaluates how well a patient hears and understands spoken words
- Tympanometry: this assesses eardrum movement and middle ear pressure to detect fluid or eustachian tube dysfunction
- Acoustic reflex testing: this measures involuntary middle ear muscle responses to sound
These results help the specialist determine if hearing loss is temporary and related to fluid. If there is lasting damage, additional care may be required.
CT Imaging
CT imaging provides detailed cross-sectional views of the temporal bone and surrounding structures. ENT specialists use CT scans to detect complications such as mastoiditis, an infection of the bone behind the ear, or cholesteatoma, an abnormal skin growth in the middle ear that can damage nearby structures. Imaging is also valuable for surgical planning.
Visit an ent specialist​
If you or your child experience recurring ear infections, ongoing ear pain, drainage, or changes in hearing, an ent specialist can provide answers and relief. Early evaluation helps prevent complications and protects long-term hearing health. Schedule an appointment with an ent specialist to receive a comprehensive assessment and a treatment plan designed for your needs.
