the medical interview is the most powerful diagnostic tool for physicians, since it is the most important source for obtaining primary data. the aim of this paper was to determine the most frequent deficiencies found in the medical interview made by students from the second semester of the 3rd year of the medical career. a descriptive study was conducted during the academic courses 1999-2000 and 2000-2001. of a total of 99 students, the medical interview was recorded to 50 of them. the collected data were compared with what was witten in the history of the present disease they were evaluated by a survey that classified the imperfections as regards the history of the present disease, types of questions and general aspects. 383 difficulties were found (17.0 % of a possible total of 2 250). 168 (43,8 %) were connected with the history of the present disease, 153 (40.0 %) with the general aspects of the development of the interview and there were 62 mistakes (16.2 %) in relation to the type of question. many deficiencies were observed in the medical interview made by students not only concerning the domain of semiological abilities but also in the interpersonal communication.