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Rectal cancer is a kind of cancer that starts as a growth of cells in the rectum. The rectum is the last several inches of the large intestine. It starts at the end of the final segment of the colon and ends when it reaches the short, narrow passage known as the anus.
Rectal cancer happens when cancerous cells develop in your rectum. Symptoms include rectal bleeding or changes in how and when you poop. Having a biological family history of rectal cancer or certain inherited disorders increases your rectal cancer risk.
Learn how rectal cancer is treated, depending on the stage. Treatment options may include surgery, radiation, chemotherapy, targeted therapy, or immunotherapy. Skip to main content
Rectal cancer diagnosis often begins with an imaging test to look at the rectum. A thin, flexible tube with a camera may be passed into the rectum and colon. A sample of tissue may be taken for lab testing. Rectal cancer can be found during a screening test for colorectal cancer. Or it may be suspected based on your symptoms.
Rectal cancer is a type of cancer that forms in the tissues of the rectum. Health history affects the risk of developing rectal cancer. Signs of rectal cancer include blood in the stool or a change in bowel habits. Tests that examine the rectum and colon are used to diagnose rectal cancer.
Colorectal cancer starts in the colon or the rectum. These cancers can also be called colon cancer or rectal cancer, depending on where they start. Colon cancer and rectal cancer are often grouped together because they have many features in common.
Cancer that starts in the colon or rectum is often called colorectal cancer. It might also be called colon cancer or rectal cancer. It starts when cells in the colon or rectum grow out of control and crowd out normal cells.
Different types of cancer can develop in the rectum. Most rectal cancers are adenocarcinomas, which are cancers from glandular tissue. Other cancer types that can occur in the rectum include carcinoid tumors, small cell carcinomas, and gastrointestinal stromal tumors (GIST).
Find up-to-date information about rectal cancer symptoms, diagnosis, and treatment options, and learn how MSK is improving the outlook for people with this disease.
Colorectal cancer is cancer that develops in the tissues of the colon or rectum. Your colon and rectum are part of your digestive system: Your colon is the first and longest part of your large intestine. It absorbs water and some nutrients from foods. It also changes the leftover waste products into stool (poop).