What Causes Ear Infections in Adults?
Ear infections are often thought of as a childhood problem, but adults get them too usually triggered by something specific rather than happening at random.
Here's what typically causes them:
A cold or flu that spreads: Infection can travel to the middle ear via the Eustachian tube, especially after a bad cold.
Blocked Eustachian tubes: Allergies, sinus infections, or colds trap fluid in the ear, creating the perfect environment for bacteria to grow.
Swimmer's ear (otitis externa): Water trapped in the ear canal after swimming or showering can lead to bacterial or fungal infection.
Earwax buildup: Excess wax traps moisture and bacteria, particularly when pushed deeper by cotton buds.
Smoking: Damages the lining of the Eustachian tube over time, increasing infection risk.
Allergies: Cause swelling and mucus that block normal ear drainage.
Structural issues: A deviated septum or nasal polyps can quietly affect how well the Eustachian tube drains.
Symptoms to watch for include ear pain, muffled hearing, discharge, fever, or dizziness. Most adult ear infections need proper assessment rather than guesswork.
A pharmacist at Harris Pharmacy can check for earwax buildup or a mild infection on the spot, and refer you on for antibiotics or specialist care if needed.