Chromosomes, or chromosome tests, deafness genes are usually mostly inherited deafness genes; chromosome tests do not usually detect inherited deafness genes. Chromosome testing is a common genetic test that can only check for abnormal changes in the composition of chromosomes. Hereditary deafness genes refer to deafness due to genetic abnormalities, which are generally confirmed and diagnosed by genetic testing. Therefore, chromosomal testing is generally not able to detect hereditary deafness genes. Common hereditary deafness genes include the GJB2 gene and the SLC26A4 gene, which may cause autosomal dominant or recessive deafness genes. Different hereditary deafness has different gene sequences, and genetic testing can clearly and conveniently identify specific deafness genes. Genetic testing can be used not only for disease diagnosis but also for gene identification. Therefore, if you want to find out whether you have a gene for deafness, you should go to a genetics clinic in a regular hospital for the relevant test.