Genetic deafness genetic testing is not a must or must-not-do situation, but depends on the specific needs of the individual. If there is a generation with hereditary deafness and you want to have another one, it is still recommended to take a look at the test in time to guide the birth of a child to avoid the re-emergence of a child with deafness. If the child has hereditary deafness, early examination during the selection of a spouse or the birth of a child can prevent the appearance of the next generation of deafness or a carrier gene for deafness, which increases the selectivity of healthy people. Some of them are drug-induced hereditary deafness, so these patients must pay special attention to some toxic drugs, which are more likely to cause deafness or total deafness than the general population once they are applied. Therefore, whether to do this test or not will depend on the specific situation.