There are many causes of hearing loss and a number of ways of explaining or classifying them. This article doesn’t include much about causes of hearing loss present at birth (congenital); it mostly covers hearing loss acquired from childhood onwards. A straightforward way of categorising causes of hearing loss is based on the type of hearing loss and how it relates to which part of auditory or hearing system has become damaged or is in some way abnormal. Often, hearing loss is accompanied by tinnitus (noises in the head or ears) and sometimes by a balance problem. Clear Sound 911 Review