Colorectal cancer is the third most common cancer worldwide and the fourth most common cause of cancer death. Risk factors include age over 50, personal or family history of colon polyps or inflammatory bowel disease, diet low in fiber/high in fat/red meat, smoking, alcohol, and sedentary lifestyle. Symptoms include rectal bleeding, blood in stool, abdominal pain, and changes in bowel habits. Screening allows early detection through colonoscopy. Staging determines treatment which may include surgery, chemotherapy, and radiation therapy. Nursing care focuses on managing anxiety, fatigue, pain, and other side effects.