Colorectal cancer is the third most common cancer worldwide. Almost 2 million cases are diagnosed every year. It is the second most common cause of death due to cancer, leading to almost 1 million deaths per year. It is estimated that the incidence of colon cancer will increase by almost 50% in the next 20 years. Most of this increase is expected to occur in countries transitioning to the developed world and this includes large parts of Asia and Middle East.