EARWAX Wax is produced by the ear to protect the canal leading from the eardrum to the outside. Overproduction of earwax (cerumen) can cause blockage of the external ear canal. Signs & Symptoms:  Decreased hearing

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• Sensory system
• Earwax
• Otalgia
• Ear canal
• Cotton swab
• Otitis
• Perforated eardrum
• Otitis externa
• Ear instillation
• Ear
• Anatomy
• Human anatomy