In this video, Dr. K K Aggarwal, President Heart Care Foundation of India and Group Editor in Chief MEDtalks, will discuss about the screening of patients for colorectal cancer. It is a fact that colorectal cancer up to the age of 40 years is uncommon. After the age of 40 years, everyone needs screening. It takes almost 10 years for a colorectal cancer to develop. He will describe how it starts from a polyp and goes on increasing and becomes malignant.