Statement of Problem: Appropriate diagnosis in oral medicine requires expertise, experience and the use of several other related fields. One of the important fields in this domain is oral pathology.Purpose: The purpose of this study was to investigate the consistency of clinical diagnosis and pathological reports of oral lesions in patients referring to oral pathological department of Kerman dentistry school during 1995- 2004.Materials and Method: The present research is a descriptive- analytic and retrospective study in which all of the samples referred to the pathology department in Kerman dental school during 1995 to 2004 were considered. The corresponding data were analyzed by Chi-Squire and T tests using SPSS 13.5 program for statistical analysis.Results: The histopathologic finding and clinical diagnosis were in the same line in 432 cases (64.87%) The highest percentage of proper diagnosis was found in the eight decade with the location in gingival lesions .The lowest percentage of agreement was found in the third decade and in the lesions of mouth floor.Conclusion: Based on the findings of the present research, it seems that the clinical diagnosis is not consistent with pathological finding in about one third of cases. Therefore, the students should be provided with sufficient information about the importance of careful recording of the patient’s characteristics and documentation of oral lesions in the charts.Key words: Diagnosis, Histology, Oral, Jaw, Lesion