Genetic testing is a type of medical test that identifies changes in genes, chromosomes, or proteins. The results of a genetic test can confirm or rule out a suspected genetic condition or help determine a person's chance of developing or passing on a genetic disorder.

Genetic testing can help predict a person's chance of developing some types of cancer by searching for specific changes in genes, chromosomes, or proteins. These changes are called mutations. Cancer patients have access to genomic biomarker information that could help match them with targeted treatments demonstrated to improve outcomes and support a person's efforts to deliver equitable access to precision oncology.