Objectives: The aim of this study was assessing psychotic-like ideations and their association with mental health in a group of medical students as a part of the normal population.

Method: A total of 150 students from Tehran University of Medical Sciences with no previous or present history of any major psychiatric illness were selected through convenient sampling method in this cross-sectional descriptive study and assessed by Peters Delusions Inventory (PDI) and General Health Questionnaire (GHQ). Data were then analyzed using Spearman’s correlation coefficient, Kolmogorov-Smirnov Test, and Mann-Whitney Test.

Results: This study revealed that on average, subjects reported 9.38 psychotic-like ideations (range: 0-28). Frequency of psychotic-like ideations and its extent were reversely associated with mental health (p<0.05).

Conclusion: Wide range of psychotic-like beliefs were found among university students in the absence of major psychiatric illness that are reversely associated with mental health.