Iva Blajić graduated in 2006 from the University of Zagreb School of Medicine, where she defended her doctoral dissertation in 2017 entitled Quality of Life and Psychiatric Comorbidity in Dermatovenereology Patients.

After completing her mandatory medical internship, she has been employed since 2007 at the Clinic for Skin and Venereal Diseases, University Hospital Centre Sestre milosrdnice, initially as a research assistant on the Ministry of Science, Education and Sports research project Psychological Status of Patients with Malignant Skin Diseases and Other Dermatoses, and subsequently as a resident in dermatology and venereology.

Since 2016, she has been working as a specialist in dermatology and venereology at the same clinic, with a narrower field of practice in inflammatory-mediated skin diseases and pediatric dermatology. She completed training in pediatric dermatology in London and Padua. She is currently undergoing subspecialization in pediatric dermatology. She participates in numerous clinical trials related to inflammatory skin diseases and is the author and co-author of scientific articles and books.