CCO wants people in Ontario to get screened for colorectal tumor It's time to help make the initial move against cancer March is Colorectal Cancers Awareness Month, and Tumor Care Ontario wants women and men to start considering getting screened. Colorectal cancers is the fourth mostly diagnosed cancers in Ontario. It is also the second leading cause of cancer deaths in guys after lung cancer and the 3rd leading cause of cancer deaths in ladies after lung and breasts cancers tadalafil generic .