
What Is Colorectal Cancer? | How Does Colorectal Cancer Start?
Colorectal cancer is a cancer that starts in the colon or the rectum. Learn about the types of colorectal cancer, how they start, and where they grow.
Colon cancer - Symptoms and causes - Mayo Clinic
Dec 19, 2024 · Find out about symptoms and causes for this cancer that starts in the large intestine. Learn about treatment options, including minimally invasive surgery.
Colon Cancer: Symptoms, Causes & Treatment - Cleveland Clinic
Colon cancer, also known as colorectal cancer, is cancer in polyps that are in the inner lining of your colon or rectum.
Colorectal Cancer: Symptoms, Causes, Diagnosis & Treatment
Sep 7, 2025 · Colorectal cancer is the fourth most common cancer in the United States and primarily affects the colon and rectum. Symptoms may include changes in bowel habits, blood in the stool, …
Colorectal Cancer Basics | Colorectal Cancer | CDC
Jun 12, 2024 · When cancer starts in the colon or rectum, it is called colorectal cancer. Sometimes it is called colon cancer, for short. The colon is the large intestine or large bowel. The rectum is the …
What is Colorectal Cancer? Symptoms, Risk Factors & Treatments
Colorectal cancer is a cancer that begins in the colon or rectum. Colorectal cancers are the third most common type of cancer in the United States. More than 145,000 people in this country are diagnosed …
Colorectal cancer - World Health Organization (WHO)
Jul 11, 2023 · Colorectal cancer is a type of cancer that affects the colon (large intestine) or rectum. It is one of the most common types of cancer worldwide. It can cause severe harm and death. The risk of …
The Basics: What Is Colorectal Cancer?
Jun 24, 2025 · What is colorectal cancer? Colorectal cancer is a cancer that starts in the colon or rectum, which are parts of the digestive system. Unlike most cancers, colorectal cancer is often …
Colorectal Cancer—Patient Version - NCI
Colorectal cancer often begins as a growth called a polyp inside the colon or rectum. Finding and removing polyps can prevent colorectal cancer. Start here to find information on colon and rectal …
Colorectal cancer: Symptoms, stages, & outlook - Medical News Today
Jul 9, 2025 · Colorectal cancer, also known as bowel cancer, colon cancer, or rectal cancer, refers to any cancer that affects the colon and rectum. Colorectal cancer may not cause symptoms in its early...