trend of cutaneous leishmaniasis in kermanshah province, west of iran from 1990 to 2012.

background: this study was conducted to explain the trend of cutaneous leishmaniasis (cl) in kermanshah province, western iran from 1991- 2012. methods: in this analytical-descriptive study, all of the patients suspected to cl in kermanshah province were studied. smears were prepared from most of them, stained with giemsa, and examined microscopically for leishman bodies. a few of the patients were diagnosed according to physician diagnosis and response to glu-cantime. questionnaires were completed for all of them. collected data were ana-lyzed using spss-21 and spearman and kendall tests. results: from 1991 to 2012, 1684 cases of cl were recorded. in the years 2011- 12 the frequency of cl in the province reached to 7.4/100,000, which showed a remarkable increase in the frequency of new cases cl in the province. in the years 2011-12 about 47% of total cases of cl in the province, was seen in ghasr-e-shirin district,which the frequency of cl in this district reached to 264.5/100,000. fre-quency of cl in males and females was 57% and 43% respectively. the most cases of cl were seen in housewives (32.1%) and age groups of 20 to 29 years old (19.9%). in addition, the most cases of disease were seen in winter (41.8%) and fall (28.9%). conclusion: cl is increasing remarkably in warm climates of the province, and ghasr-e-shirin must be of particular interest, as the most infected district in the province.