Congenital deafness can be hereditary, but can also arise from complications during pregnancy. It is estimated that about 1 in 1,000 babies severely hearing impaired or deaf.
When hearing loss is hereditary, then this is recorded in the genes. It may indeed be that a genetic form of hearing impairment later in life are revealed.
Likewise, in addition to hearing impairment are also other bodily functions are disturbed. The GP may refer to an institution that provides information on heredity.
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