The adoption of Grounded Theory (GT) in nursing and health research is growing. However, different structures and models are used, raising doubts among researchers. Thus, this theoretical study is presented in order to reflect on the different methodological perspectives of GT, highlighting historical, conceptual, structural and operational aspects. GT is based on theoretical and epistemological concepts with the possibility of sustained use in three methodological aspects: classical, Straussian and constructivist. Such strands have special features that enable different modi operandi, based on their own conceptions and epistemological paradigms, which are fruit of the evolution of the scientific knowledge construction process. To ensure rigor in the use of this method and the production of new knowledge, the definition of the methodological approach must be carried out according to the described phenomenon and the researcher's perspective on the reality and his epistemological position.
Qualitative research; Nursing research; Nursing methodology research