Causes of Hearing Loss
- 360 million people worldwide have disabling hearing loss. (World Health Organisation).
- Hearing loss may result from genetic causes, complications at birth, certain infectious diseases, chronic ear infections, the use of particular drugs, exposure to excessive noise and ageing.
- Half of all cases of hearing loss are avoidable through primary prevention.
- People with hearing loss can benefit from hearing aids, cochlear implants and other assistive devices; captioning and sign language; and other forms of educational and social support.
- Current production of hearing aids meets less than 10% of global need.
Age Related Hearing Loss
Hearing loss is a natural consequence of ageing, changes in the inner ear is the common cause of hearing loss and this occurs as we grow older. Factors such as your medical history, and repeated exposure to loud noises can also play a role in contributing to age-related hearing loss.
Noise Induced Hearing Loss
Another common cause of hearing loss is over exposure to excessive noise. We can be exposed to excessive noise in many situations including the workplace, concerts, playing MP3 too loudly, motor sports, shooting etc.
Wax can build up and block sound form passing through the auditory canal. Periodic removal ear wax can be performed by your GP or at your Hearing clinic.
Otitis media is an inner ear infection characterised by the build-up of fluid in the middle ear lining. This can be caused by allergies, head colds, inflamed tonsils and adenoids, blocked Eustachian tubes, sore throats and other viruses.
Perforation of the ear drum can be causedbut a blow to the ear, a change in air pressure associated with flying or scuba diving, a foreign object such as a cotton swab used to clean the ears, or pressure caused by middle-ear infection. This can be an extremely painful condition. In most case, a perforated eardrum will heal itself within two weeks.
People who sustain head injuries are especially vulnerable to hearing loss or tinnitus(ringing or buzzing in the ears), either temporary or permanent. Head injuries that cause a reduced blood supply can harm the inner ear structure.