Genetic Testing for Cancer: A Complete Guide for Patients
Testing for cancer-related genes is changing our understanding of cancer and risk prevention and treatment. By studying the DNA, genetic tests can identify inherited mutations that place you at greater risk for cancer, which can enable earlier detection and treatment, encourage prevention, and assist you in making informed decisions regarding your health. This article will cover what genetic testing is and how it may affect your health, and a brief discussion of who should consider genetic testing. What is genetic testing for cancer? Genetic testing involves analyzing your DNA to identify mutations, or specific changes in genes, that may increase your cancer risk. Mutations can be inherited from your parents and are often associated with hereditary cancer syndromes. Testing generally requires a sample of your blood, saliva, or tissue that is sent to a lab for analysis. Some tests could tell you whether mutations were found in certain genes, such as BRCA1 and BRCA2 or TP53, which a...