Cancer can occur anywhere in the body. The continuous growth of tumor cells can affect organ which can be lung, prostate, colon, rectum, stomach, liver, cervix, breast. Cancer are often described by the body part that they originated from. However, some body parts contain multiple types of tissue, so to be precise, cancer can be additionally classified by the type of cell that the tumor cells originated from. The type of cancer a person has needed to be known properly as diverse types of cancer can behave very differently and respond to different treatments. In that colorectal cancer is one of the organ specific cancer which begins with polyps which can be seen on the inner lining of colon or rectum and are further categorised based on polyps.