CCIN
What is Colorectal Cancer (CRC)?
Colorectal cancer (CRC) is a type of cancer that starts in the colon or rectum. The colon is the large intestine, while the rectum is the final portion of the digestive tract. CRC is the third leading cause of cancer death in the United States, with over 147,950 new cases and 53,200 deaths estimated in 2020.
Description
CRC typically begins as small, noncancerous growths called polyps that form on the lining of the colon or rectum. Over time, some polyps can become cancerous. CRC can develop in any part of the colon or rectum, but it is most commonly found in the sigmoid colon and rectum.
Associated Diseases
Several factors can increase the risk of developing CRC, including:
- Age: The risk of CRC increases with age, with most cases occurring in people over 50.
- Family history: People with a family history of CRC are at increased risk for developing the disease.
- Inflammatory bowel disease: People with ulcerative colitis or Crohn's disease have an increased risk of CRC.
- Obesity: Obese people have a higher risk of developing CRC.
- Smoking: Smoking increases the risk of CRC.
- Diet: A diet high in red meat and processed meat increases the risk of CRC.
Did you Know ?
In the United States, the average age at which CRC is diagnosed is 68. However, the incidence of CRC has been increasing in younger people. Approximately 10% of CRC cases occur in people under the age of 50.
