How does impacted cerumen cause deafness?

Impacted cerumen, or earwax, can lead to deafness by blocking the ear canal, which prevents sound waves from reaching the eardrum and inner ear. This blockage can cause a temporary conductive hearing loss, as the normal transmission of sound is disrupted. Additionally, the pressure buildup from the impacted wax can cause discomfort and further affect hearing. Regular cleaning and removal of excess cerumen can help restore normal hearing function.