Medicine is certainly closely related to everyone's daily life. In the course of their lives, people often consult doctors and many patients are thoughtful about their choice of doctor. What considerations do they have in mind? On what does the outcome of treatment depend? Does it depend on the work experience or the qualifications of the doctor, on the credibility of the healthcare institution, on the latest technologies available in the hospital or on the variety of medications that are prescribed by the doctor? In this article we explore the influence of both the doctor's and the patient's attitudes (extrovert or introvert) on the relationship between them. Is the doctor's temperament important to patients? Do the results of treatment depend on the patient being melancholic? A self- administered questionnaire was used to collect data which lately was analyzed. In this article, you will be able to explore the results of this study.