Dr. Ganesh Nagarajan is a cancer surgery doctor specialist in colorectal cancer treatment in Mumbai. Colorectal cancer disease starts in the colon or the rectum and this cancer is also called colon cancer or rectal cancer and this colorectal cancer starts automatically when cells in the body start to grow out of control. Colorectal diseases impact the colon or rectum and their functionality, including colon cancer, colon polyps, colitis, and Crohn's disease.