Genetic epidemiology is a field of study that combines genetics and epidemiology to understand the genetic factors that contribute to disease in populations. Synonyms for genetic epidemiology include molecular epidemiology, medical genetics, population genetics, and human genomics. Molecular epidemiology emphasizes the study of the molecular and genetic basis of disease. Medical genetics is a field that focuses on the diagnosis and treatment of genetic diseases. Population genetics investigates the genetic makeup of populations. Human genomics is the study of the structure, function, and evolution of the human genome. These synonyms for genetic epidemiology all share the common focus of understanding the role of genetics in disease and identifying ways to prevent, diagnose, and treat genetic disorders.