As we can observe from an ontological point of view, the reality that we intended to study did not exist outside of me as a researcher, and the connection that we looked to establish was an interrelation between the studied reality and us. As this research aimed to explore the patients’ experiences regarding pet therapy, we believe that a qualitative research approach was important to give a voice to those who are suffering from cancer-related symptoms and how they experienced the relief of these symptoms. It is equally significant to understand the associations that oncological patients made and what are their concerns regarding the pet therapy and the assistance provided from using it.Likewise, research inspired from the interpretative paradigm are based on the assumption that people live in a context and create a culture that is reproduced through their words and actions (Guba and Lincoln, 2005). The intention of the research in a qualitative interpretative paradigm seeks to understand people’s reasons and motivations in their real dimension; as such, this understanding is obtained from within, allowing patients to freely narrate their own lived experiences regarding pet therapy.Additionally, from an epistemological point of view, the results obtained came from the interrelation between the researcher and the group of interviewees. In this sense, we consider that the results are co-constructions between the participants and the interviewer, admitting that subjectivities from all the participants influenced the results. Also, we recognize that my personal subjectivity, my values and beliefs played a role in this research.