Dr. Cao has established research interests in various aspects of medical genetics and genomics, including understanding the etiology of genomic disorders such as birth defects, neurodevelopmental disorders, infertility on a molecular basis, discovering the novel disease-causing genes, investigating the how the constitutional mosaicism of genomic varinat that contribute to the human diseases and traits. She has completed American Board of Medical Genetics and Genomics (ABMGG)-accredited fellowship in Laboratory genetics and genomics.