What causes hearing loss?
Depending on the cause it can range from a mild to a profound hearing impairment. If you have hearing loss you may not be aware of it, especially if it has developed over time. Your family members or friends may be the first to notice a change in your hearing. For example, they may notice that you are having difficulty hearing what people are saying, especially when many people are talking at the same time or in the presence of background noise. Hearing loss determines how well you may process sounds.