In 1904, Ferrari enrolled in medical school at the National University of Buenos Aires while continuing to teach.[5] There had been five other women in the history of Argentina who had earned medical degrees, and though her enrollment was not desired, there was no legal precedent to bar her admittance.[7] In her first year, she was assigned to work as an assistant to Joaquín Llambías (es) in his pathology research, which inspired her continued participation in medical research.[2] Ferrari graduated in 1911, and that same year, she married another graduating doctor, Nicolás M. Gaudino. In 1918 the couple had their only child, Maurio Nicholás Gaudino.[8] Ferrari was sometimes known as María Teresa Ferrari de Gaudino or simply María Teresa de Gaudino.