Hearing loss, also known as hard of hearing, anacusis, or hearing impairment, is a partial or total inability to hear. It may occur in one or both ears. In children hearing problems can affect the ability to learn language and in adults it can cause work related difficulties. In some people, particularly older people, hearing loss can result in loneliness. Deafness is typically used to refer to those with only little or no hearing.

Hearing loss may be caused by a number of factors, including: genetics, old age, exposure to noise, some infections, birth complications, trauma to the ear, and certain medications or toxins. A common infection that results in hearing loss is chronic ear infections. Certain infections during pregnancy such as rubella may also cause problems. Hearing loss is diagnosed when hearing testing finds that a person is unable to hear 25 decibels in at least one ear.Testing for poor hearing is recommended for all newborns. Hearing loss can be categorised as as mild, moderate, severe, or profound.

The most efficient manner of addressing hearing problems is through the provision of designated hearing professionals. It is recommended that those suffering from hearing loss or general hearing problems visit a practicing Hearing Instrument Specialists to receive hearing tests in order to identify the specific problem. The unique needs of the patient can thus be identified and the proper hearing equipment can be dispensed in order to augment one’s quality of life.