Medical genetics is the branch of genetics that focuses on the diagnosis, management, and prevention of genetic disorders and hereditary diseases in individuals and families. This field combines knowledge from genetics, molecular biology, and medicine to identify genetic variations that may predispose individuals to certain diseases or conditions. Medical geneticists use genetic testing, family history analysis, and counseling to help patients understand their risk for genetic conditions and make informed decisions about their health care. Medical genetics plays a crucial role in personalized medicine, as it enables healthcare providers to tailor treatments and interventions based on a patient's genetic profile.