According to a survey conducted recently, nearly 10% of Hong Kong residents have certain degree of hearing loss, which include seniors, adults, children and even new born infants.
Hearing loss in adults has many causes such as middle ear infection, head injury, tumors, viral infection in the inner ear and over-exposure to noise. The most common cause is, however, normal aging process.
Hearing loss in children is usually caused by middle ear infection. A small percentage of children have hearing loss present at birth, which can be hereditary hearing loss or hearing loss caused by other factors present during pregnancy or at the time of birth.
In the following sessions, we will explain in detail the types, causes and corresponding management options for hearing loss present in different age groups.