Objective: This study was carried out to determine the sites which are selected by nurses to use in the intramuscular medicine applications and thefactors affecting the selection of the injection sites.Methods: The population of this descriptive and cross-sectional type of study was composed of 250 nurses working in two hospitals in Istanbul, thesample was composed of 171 nurses selected by stratified random sampling method. Data were collected with ‘Structured Questionnaire Form’.Results: The average age of the nurses was found to be 26.27±7.46 years, it was determined that 40.4% of them applied injection very often and theypreferred dorsogluteal site to apply injection with a ratio of 83.6%. When the knowledge level of nurses about the co...