Abstract: In this study, which was performed in 2007 a statistical investigation has been performed on the occurrence frequency, type of cancer and the relevance of this disease with age and sex in Kermanshah Province. Gathering the information of patient’s medical reports between 2002 and 2006 and analyzing those using SPSS software showed that in this province after skin cancer, bladder cancer has the highest rate of occurrence unlike the world statistics. This analysis indicated that urban cancer rate is nearly twice rural rate and also showed that approximately 60% of infections are spotted among men and 40% among women. However in the age of 17 till 50, women are attacked more than men. The highest shown figures are in men at the age of 70 and women at the age of 60.