What does serous otitis media often lead to in terms of hearing?

Serous otitis media is characterized by the accumulation of fluid in the middle ear space without signs of acute infection. This condition typically affects the auditory function by creating a barrier that interferes with the normal movement of the tympanic membrane (eardrum) and the ossicles (the tiny bones in the middle ear).

Specifically, the presence of fluid leads to conductive hearing loss, which occurs because sound waves cannot efficiently pass through the middle ear to the inner ear. The fluid diminishes the vibrational ability of the tympanic membrane and can therefore impede the transmission of sound. This type of hearing loss is generally reversible once the fluid is resolved, making it more distinct from other forms of hearing loss, such as sensorineural or mixed hearing loss.

In summary, the correct answer highlights the direct relationship between serous otitis media and conductive hearing loss due to the obstruction caused by fluid in the middle ear.