There are three main types of hearing loss:
Conductive hearing loss: When sound is not able to get through the outer and middle ear. This can be from fluid in the ears, ear infection, poor ear tube function, earwax buildup, an object that stuck in the outer ear, or an issue with how your middle ear is formed.
Sensorineural hearing loss (SNHL): This type of loss occurs when the hair cells in the inner ear and/or nerves that link the inner ear with the brain are damaged. This is the most common type of hearing loss. This could be caused by illness, exposure to loud noise, gene mutation, or side effects from certain treatments such as cancer treatment.
Mixed hearing loss: This is a mixture of SNHL and conductive hearing loss. It is caused by damage to both the outer or middle ear and damage to the inner ear or auditory nerve. Among the causes are age, disease, some medications, working in noisy environments, earwax buildup, trauma to the head, and conditions at birth.