There are three types of hearing loss. Conductive loss is a disorder of the outer or middle ear, sensorineural loss is a disorder of the inner ear and mixed loss is a combination of both.
What can cause conductive hearing loss?
- Malformation of outer ear, ear canal, or middle ear structures
- Fluid in the middle ear from colds
- Ear infection (otitis media – an infection of the middle ear in which an accumulation of fluid may interfere with the movement of the eardrum and ossicles
- Poor Eustachian tube function
- Perforated eardrum
- Benign tumors
- Impacted earwax
- Infection in the ear canal
- Foreign body in the ear
What can cause sensorineural hearing loss?
- Exposure to loud noise
- Head trauma
- Virus or disease
- Autoimmune inner ear disease
- Hearing loss that runs in the family
- Aging (presbycusis)
- Malformation of the inner ear
- Meniere’s Disease
- Otosclerosis – a hereditary disorder in which a bony growth forms around a small bone in the middle ear, preventing it from vibrating when stimulated by sound.