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Deafness is a severe or complete loss of hearing. Deafness can occur in one or both ears. It can happen slowly or suddenly. Early detection and management can lessen the impact on quality of life.
Types of deafness may include:
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Sound waves travel from the outside and through structures in the outer, middle, and inner ear. The auditory nerve transmits the signal to the brain where it is translated into sound. Interruption of the sound wave can occur in the ear structures, the auditory nerve, or in the brain where sound waves are translated. This interruption can result in deafness.
Deafness can be present at birth (or soon after) or acquired anytime throughout life. In many cases, the cause of deafness may be unknown.
Factors related to fetal development and birth that may increase the chance of deafness include:
Factors that may increase the chance of acquired deafness may include:
Symptoms may be gradual or sudden depending on the cause. Signs of deafness can occur at any age. Some symptoms include:
Symptoms of deafness in infants and toddlers may be noted at these stages:
All children, including newborns, should be screened for hearing loss.
You will be asked about your symptoms and medical history. A physical exam will be done. As part of the diagnosis, your doctor may try to determine the following:
Your ears may be tested. This can be done with:
Images may be taken of your ears and surrounding structures. This can be done with:
Treatment for deafness depends on the cause. Some types are permanent and cannot be treated. Lifestyle changes are an important part of coping with deafness. Some forms of deafness can be partially treated with surgery. You and your doctor will discuss the best treatment options for you.
Lifestyle changes may include:
If you are planning to go to a new place, such as a theater or hotel, find out what accommodations or assistance is available before you arrive.
A cochlear implant directly stimulates part of the brain and uses a tiny computer microprocessor to sort out incoming sound. It can be for certain types of hearing loss that affect the inner ear.
Deafness may not be preventable in all people. Hearing screening for newborns can help ensure that hearing loss in young babies is detected and treated at the earliest possible stage. This will lessen the impact on your baby's life.
To help reduce the chance of deafness for you or your child:
National Association of the Deaf
National Institute on Deafness and Other Communication Disorders (NIDCD)
Canadian Association of the Deaf
Canadian Hearing Society
Adjusting to hearing loss. Hearing Link website. Available at: https://www.hearinglink.org/living/adjusting-to-hearing-loss. Accessed September 25, 2017.
Deafness—a range of causes. State Government of Victoria Better Health website. Available at: https://www.betterhealth.vic.gov.au/health/conditionsandtreatments/deafness-a-range-of-causes. Accessed September 25, 2017.
Deafness and hearing loss. World Health Organization website. Available at: http://www.who.int/mediacentre/factsheets/fs300/en. Updated February 2017. Accessed September 25, 2017.
Plaza G, Herráiz C. Intratympanic steroids for treatment of sudden hearing loss after failure of intravenous therapy. Otolaryngol Head Neck Surg. 2007;137(1):74-78.
Sudden deafness. National Institute on Deafness and Other Communication Disorders (NIDCD) website. Available at:https://www.nidcd.nih.gov/health/sudden-deafness. Updated March 6, 2017. Accessed September 25, 2017.
Sudden hearing loss. Merck Manual Professional Version website. Available at: http://www.merckmanuals.com/professional/ear%2C-nose%2C-and-throat-disorders/hearing-loss/sudden-hearing-loss. Updated October 2016. Accessed September 25, 2017.
Sudden sensorineural hearing loss. EBSCO DynaMed Plus website. Available at:http://www.dynamed.com/topics/dmp~AN~T115342/Sudden-sensorineural-hearing-loss. Updated August 25, 2017. Accessed September 25, 2017.
Last reviewed September 2018 by EBSCO Medical Review Board Marcie L. Sidman, MD Last Updated: 9/11/2015