摘要:Introduction: Cement has long been known as a cause of both irritant and allergic contact dermatitis. However, there are little data relating to occupational skin diseases (OSD) in the Iranian construction industry. The aim of this study is to evaluate the epidemiology of cement dermatitis among terrazzo and cement manufactory workers. Methods: This is cross-sectional descriptive study. In this study 50 cement manufact-ory workers in Shahroud and 150 terrazzo workers in Lordegan were interviewed through questionnaire. Questionnaire includes demographic characteristics and questions about present dermatitis, background eczema, daily work hours, exposed chemical agents, using of gloves. Patients examined and patch tested by dermatologist. Data analyzed with SPSS software and c2, Mann Whitney and logistic regression statistical test. Results: The findings of the study showed that 8 workers (16%) in cement factories and 52 workers (34.7%) in Lordegan terrazzo enterprises had reported dermatitis at the time of review. Of which 15.5% in terrazzo workers had allergic contact dermatitis. In this study the prevalence of cement dermatitis increased with increasing age and there was significantly differences between dermatitis and background of dermatitis in terrazzo workers (P<0.05). Conclusion: Cement should be treated as hazardous materials, wearing of suitable gloves, early diagnosis and treatment of contact dermatitis and health education to workers is suggested.