When the vibrations of sound waves are not being transferred from the outer to the inner ear.
This can be caused by many different things including;
excessive ear wax build up
damaged ossicles (the tiny bones in the middle ear),
a perforated ear drums,
or even a defective ear drum.
Meaning there is a dysfunction in the inner ear system, cochlea, or the auditory nerve.
Long term exposure to loud noise especially in the high- frequency range are a common reason for sensorineural loss.
This is a combination of conductive and sensorineural hearing loss.
It shows damage in both the outer and inner ear systems.
This can be caused by a variety of different things including exposure to loud sound, some medications, and even regular ageing.