Genetic testing has become an important component of cancer diagnosis, risk assessment, and personalized treatment. By analyzing an individual’s genomic profile, these tests can provide important information about the risk of developing cancer, the presence of specific cancer mutations, and the effectiveness of potential treatments. In cancer care, the two most common genetic tests are cancer risk assessment genetic testing and circulating tumor DNA testing (ctDNA testing). This article will explore these tests, their uses, benefits, and role in cancer management.