---

Background & Objective: There are a tramandous changes are happened after a person entered to the university. This period considered to be a very deligate part of student life. During this phase usually there are anxiety and combination of other problems, which could affect health status of the person. The mental health considered a high ranking items among the different groups in one society, especially more when we are talking about the medical sciences students, because these students are goings to look after other people health in the community, the health status of medical and paramedical students should be seriously taken into consideration. On the basis of these facts, this research has been set-up to investigate the mental health status of trainee medical and paramedical students of Mazandaran University of Medical Sciences. Materials & Methods: This research project was an descriptive analytical study on all of the medical and paramedical trainee students in 2nd term of the academic year 1999-2000 of Mazandaran University. The basis for this research’s was the questionnaires which contained the personal demographic and also GHQ tests. Results: The GHQ test was set up on physical disability, sleep disorder, anxiety and unsociable. In 2 groups of students and there was no differences between the 2 groups, in dimension of depression the prevalence among the medical students was more than para-medical student, that this difference was significant (P<0.05). Conclusion: In regard to the results of this research and the steady increase of mental problems numbers of suspected cases among the students, in addition to the attention of health authorities. The establishment of student’s advisory unit is required.