study of disasters medical severity index in kerman province

background: disasters always threaten human societies and cause high property damages and civilian casualties. therefore, many studies are carried out to find the optimal policies and procedures for preparedness. this study was conducted to determine medical severity index of kerman province regarding disasters and accidents. materials and methods: this descriptive and cross-sectional study was carried in kerman province in 2015. data were analyzed using n×s/tc equation. medical severity index (msi) was rated on likert-type scale as very low, low, moderate, high, and very high. results: the results showed that the mean msi was 4.58 in census method cities, which were the highest level and 0.25 in kerman city, which was the lowest. highest msi is related to earthquake risk (msi=225) and the lowest msi is related to flood risk (0.03).  conclusion: as the means of msi were high and very high, it is recommended to apply the required interventions to improve the effective components and increase hospital treatment and medical rescue capacities.