In this study, it is intended to explore how the analysis of the conversation among the doctors and their patients in Turkish facilitate to develop textual and contextual understanding and to determine the importance of language planning in Turkey. In general term, the way the communicators interpret the speech presentation and text modes may vary from one situation to another. The words and the structures used in the language are the clues to comprehend the discourse in context. Therefore, this paper aims to examine the reasons why the doctors prefer using the medical terms and language of science via analysing their speech in different situations. In this context, the reasons of using the medical terms are investigated and some examples of the purification of the medical terminology is examined in this study. The data is collected through the observation reports, interviews with the doctors and the patients. The participants in this study include the patients and the doctors at Medical Faculty of Namık Kemal University.