The current low cancer incidence rates in Iran might be due to lack of national cancer screening programs for prostate, colorectal or breast cancer, a consequence of incomplete registration as well as incomplete diagnosis of cancer patients; it is expected that it will rise dramatically in the future because of anticipated increase in life expectancy and westernized lifestyle. The first priorities for health policy makers should be developing, establishing and implementing national cancer control; or else, the health system could not respond to the demands regarding to diagnosis, treatment and palliation for these patients in the future.