The cost of deafness genetic test is about 3,000~5,000 RMB, which varies according to the number of genes to be tested and the level of charges in different regions. Deafness genetic testing is a pre-marital or pre-pregnancy blood test, which can clarify whether both parents have deafness genes or mutated genes to reduce the incidence of deaf children. The cost of this test varies depending on the region, the hospital, and the number of genes tested, and is usually between $3,000 and $5,000. Deafness genetic testing can reduce the probability of giving birth to a child with congenital deafness, which is of great significance to eugenics, and it is recommended to go to a regular hospital for testing to avoid adverse effects.