A genetic test is a medical procedure that involves examining an individual's DNA to identify changes or mutations in their genes, chromosomes, or proteins. This type of testing can help determine if someone has inherited or acquired genetic disorders, and it may also be used for predicting the risk of developing certain diseases such as cancer or heart disease. Genetic tests are often performed using a sample of blood, saliva, or other tissue from the individual being tested. The results of these tests can provide valuable information to help guide medical treatment decisions and improve overall health outcomes.