Rectal cancer is a type of cancer that affects the tissue lining of the rectum. There are several synonyms for this condition, including colorectal cancer, bowel cancer, and colon cancer. While these terms are often used interchangeably, they may refer to slightly different types of cancer that affect various parts of the large intestine. Other related conditions include anal cancer, which affects the tissue in the anal region, and inflammatory bowel disease, which refers to a group of chronic inflammatory conditions that can affect the entire digestive tract. Early detection and treatment are key in effectively managing these conditions and improving outcomes for patients.