After completing medical education in Hacettepe University Faculty of Medicine in Ankara (1992), she became a pediatrician (1997) and neonatologist (2001) in the same university hospital. She started working as a consultant doctor and assistant professor in neonatology in Ondokuz Mayıs University Faculty of Medicine, Samsun in 2003. She had the degrees of associate professor in Neonatology in 2005 and professor in Neonatology in 2012. She is the chief of Neonatology Department, which is a 44 bed NICU with more than 120 health-workers since 2011.   The main areas of research are neonatal nutrition, acute kidney injury, vitamin D and associated neonatal morbidities and nosocomial infections. Dr. Aygun has nearly 50 publications in SCI indexed journals and has authored many book chapters. She has more than 400 citations according to web of science (h index:12) and lectured in many national and international organizations on neonatology and general pediatrics.   She has an active role in medical education of students (both in Turkish and in English programs) and has educated many residents in pediatrics and fellows in neonatology for 15 years She also takes part in the organization of education programs by Turkish Ministry of Health for pediatricians and also an educator in Pediatric Advanced Life Support courses. She is the chief of the Samsun bureau of Turkish National Pediatrics Association.