Crackling Ear (Eustachian Tube Dysfunction & Other Causes)

Ear crackling/popping typically reflects:

• Eustachian tube dysfunction (ETD) – failed pressure equalization → muffled hearing, fullness, crackle on swallow/yawn. Causes: URI, allergy, sinusitis, barotrauma.
• Otitis media – effusion (OME) or acute (AOM); + pain, fever, hearing loss.
• Tinnitus – phantom sound; often comorbid with hearing loss, noise exposure, medications.
• Ménière's disease – endolymphatic hydrops → episodic vertigo, fluctuating hearing loss, tinnitus, aural fullness.
• TMJ disorder – crepitus referred to ear.

See ENT if: persistent >2 weeks, hearing loss, vertigo, pain, drainage, unilateral.