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Genetic factors of hearing impairment in children-1

Genetic factors of hearing impairment in children

  Genetics is an important cause of hearing impairment in children, and plays an important role in the factors that cause deafness in children. Hereditary hearing impairment can be divided into syndromic hearing impairment (SHI) and non-syndromic hearing impairment (NSHI) according to different phenotypes, and the proportion of non-syndromic hereditary hearing impairment is as high as 70%. According to the different ways of inheritance, non-syndromic hereditary hearing impairment is divided into autosomal dominant (AD), autosomal recessive (AR), X-linked and mitochondrial inheritance, among which autosomal recessive hearing impairment Most common (75%-85%). Genetic counseling Genetic testing and genetic counseling can effectively prevent and control the occurrence of hereditary hearing impairment. Genetic counseling is a communication process to avoid or reduce the risk of a genetic disorder developing in a family.


      During this process, professionals should strive to enable the counselor or his or her family to:

1. Understand the basic information about genetic diseases, including diagnosis, prognosis and treatment measures;

2. Understand the genetic mode of the disease and the recurrence risk of specific relatives;

3. Understand the diagnosis and prevention methods of related diseases and their possible options, such as prenatal diagnosis, changes in reproductive methods, etc.;

4. Make the most appropriate choice according to the risk of recurrence and the reproductive goals of the consultant;

5. Make proper arrangements for sick family members.

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